Products

Suppliers
Filter Gallery
15,077

Wholesale Ultrasonic Flaw Detection

Products
Ultrasonic Flaw Detector Detection Equipment Testing Flaw Detector Boat Form Block Testing Equipment

Sorry! No matches were found.

BKN Brand Ultrasonic Testing Equipment for Flaw Detection in Pipes and Bars

BKN Brand Ultrasonic Testing Equipment for Flaw Detection in Pipes and Bars

US $ 100,000-300,000 / Piece FOB
1 Piece (MOQ)
More
Main Products: NDT Testing, Eddy Current Flaw Detector, Hardness Eddy Current Sorting Machine, Magnetic Flux Leakage Testing, Ultrasonic Testing, EDM Notch Machine, Crack and Hardness Testing, Non-Destructive Testing, Pipe Eddy Current Testing, Eddy Current Testing
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Nanjing Bkn Automation System Co., Ltd

Manufacturer/Factory

Jiangsu, China Since 2024
Chat Now Send Inquiry
Ling60 Metal Wire Rope Ultrasonic Flaw Detector Wire Rope Internal and External Defect Detection

Ling60 Metal Wire Rope Ultrasonic Flaw Detector Wire Rope Internal and External Defect Detection

US $ 2,550-2,600 / Set FOB
1 Set (MOQ)
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Jinan Liling Testing Machine Co., Ltd

Manufacturer/Factory,Trading Company

Shandong, China Since 2023
Chat Now Send Inquiry
High Frequency NDT Testing Equipment Phased Array Ultrasonic Flaw Detector

High Frequency NDT Testing Equipment Phased Array Ultrasonic Flaw Detector

US $ 2,299-2,350 / Piece FOB
1 Piece (MOQ)
More
Main Products: Ultrasonic Flaw Detector, Flaw Detector, Eddy Current Detector, Climate Chamber, Image Measuring Instrument, Thickness Gauge, Leeb Hardness Tester, Roughness Waviness Tester, Coating Thickness Gauge, Industrial Endoscope
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Shenzhen Taijin Precision Instrument Co., Ltd

Manufacturer/Factory

Guangdong, China Since 2024
Chat Now Send Inquiry
Portable Ultrasonic Flaw Detector Industrial Digital Supersonic Flaw Detection

Portable Ultrasonic Flaw Detector Industrial Digital Supersonic Flaw Detection

US $ 2,200-2,300 / Piece FOB
1 Piece (MOQ)
More
Display : Digital
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Shenzhen Taijin Precision Instrument Co., Ltd

Manufacturer/Factory

Guangdong, China Since 2024
Chat Now Send Inquiry
Portable Digital Ultrasonic Flaw Detector

Portable Digital Ultrasonic Flaw Detector

US $ 3,350-4,000 / Set FOB
1 Set (MOQ)
More
Main Products: Soil Test Equipment, Asphalt Test Equipment, Concrete Test Equipment, Cement Test Equipment, Rock and Aggregate Test Equipment, Skid Resistance and Friction Tester, Test Mould, Dynamic Probing Rig, Los Angeles Abrasion Machine, Asphalt/Soil Non Nuclear Electric Density Gauge
Contact Supplier
Audited Supplier Audited Supplier Since 2007
Zhuozhou Tianpeng Imp. & Exp. Trade Co., Ltd.

Manufacturer/Factory,Group Corporation

Hebei, China Since 2007
Chat Now Send Inquiry
Railway Track Metal Detection Car

Railway Track Metal Detection Car

US $ 69,000 / Piece FOB
1 Piece (MOQ)
Contact Supplier
Audited Supplier Audited Supplier Since 2022
CRRC QISHUYAN INSTITUTE CO., LTD.

Manufacturer/Factory

Jiangsu, China Since 2022
Chat Now Send Inquiry
GDPD-313M TEV Sensor Portable Partial Discharge Detector

GDPD-313M TEV Sensor Portable Partial Discharge Detector

US $ 3,500-8,500 / Piece FOB
1 Piece (MOQ)
More
Main Products: Transformer Tester, Insulation Tester, Vacuum Bottle Tester, Partial Discharge System, High Voltage Test Set, Hipot Tester, Vlf Test Equipment, Fault Locating Primary Cable Systems, Proof Testing, Hipotential Test Equipment
Contact Supplier
Audited Supplier Audited Supplier Since 2011
HV Hipot Electric Co., Ltd.

Manufacturer/Factory

Hubei, China Since 2011
Chat Now Send Inquiry
Handheld Portable Digital Ultrasonic Crack Detector Flaw Detection Equipment Price

Handheld Portable Digital Ultrasonic Crack Detector Flaw Detection Equipment Price

US $ 3,000-5,000 / Piece FOB
1 Piece (MOQ)
More
Weight : 0-100Kg
Contact Supplier
Audited Supplier Audited Supplier Since 2015
Huazheng Electric Manufacturing (Baoding) Co., Ltd.

Manufacturer/Factory

Hebei, China Since 2015
Chat Now Send Inquiry
Portable Welding Ultrasonic Flaw Detector for Cracks Testing

Portable Welding Ultrasonic Flaw Detector for Cracks Testing

US $ 2,100-2,200 / Piece FOB
1 Piece (MOQ)
More
Main Products: Ultrasonic Flaw Detector, Flaw Detector, Eddy Current Detector, Climate Chamber, Image Measuring Instrument, Thickness Gauge, Leeb Hardness Tester, Roughness Waviness Tester, Coating Thickness Gauge, Industrial Endoscope
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Shenzhen Taijin Precision Instrument Co., Ltd

Manufacturer/Factory

Guangdong, China Since 2024
Chat Now Send Inquiry
Digital Handheld Metal Nondestructive Testing Equipment Ultrasonic Flaw Detector Price

Digital Handheld Metal Nondestructive Testing Equipment Ultrasonic Flaw Detector Price

US $ 3,000-5,000 / Piece FOB
1 Piece (MOQ)
More
Display : Digital
Contact Supplier
Audited Supplier Audited Supplier Since 2015
Huazheng Electric Manufacturing (Baoding) Co., Ltd.

Manufacturer/Factory

Hebei, China Since 2015
Chat Now Send Inquiry
Digital Portable Ultrasonic Flaw Detector Testing Equipment for Weld Inspection

Digital Portable Ultrasonic Flaw Detector Testing Equipment for Weld Inspection

US $ 3,000-5,000 / Piece FOB
1 Piece (MOQ)
More
Main Products: Hipot Tester, Insulation Resistance Tester, Oil Tester, Circuit Breaker, Relay Protection Tester, Capacitor, High Voltage Generator, Testing Transformer, Power Quality Analyzer, Clamp Meter
Contact Supplier
Audited Supplier Audited Supplier Since 2015
Huazheng Electric Manufacturing (Baoding) Co., Ltd.

Manufacturer/Factory

Hebei, China Since 2015
Chat Now Send Inquiry
Hz-Atu601 Portable Ufd Ultrasonic Flaw Detector Machine for Weld Inspection

Hz-Atu601 Portable Ufd Ultrasonic Flaw Detector Machine for Weld Inspection

US $ 3,000-5,000 / Piece FOB
1 Piece (MOQ)
More
Power Source : AC220V
Contact Supplier
Audited Supplier Audited Supplier Since 2015
Huazheng Electric Manufacturing (Baoding) Co., Ltd.

Manufacturer/Factory

Hebei, China Since 2015
Chat Now Send Inquiry
Steel Pipe & Tube Steel Round Bar Stainless Steel Titanium Agricultural Machinery Parts Steel Coil & Strip
KUT-650 High Speed Weld Ultrasonic Flaw Testing Equipment / Tester Meter / Test Machine

KUT-650 High Speed Weld Ultrasonic Flaw Testing Equipment / Tester Meter / Test Machine

US $ 999-1,999 / Piece FOB
1 Piece (MOQ)
More
Main Products: Instrument
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Guangdong Hongtuo Instrument Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Guangdong, China Since 2019
Chat Now Send Inquiry
Portable Industrial Digital Current Ultrasonic Flaw Detector

Portable Industrial Digital Current Ultrasonic Flaw Detector

US $ 4,060-4,300 / Piece FOB
1 Piece (MOQ)
Contact Supplier
Audited Supplier Audited Supplier Since 2015
NANBEI INSTRUMENT LIMITED

Manufacturer/Factory,Trading Company,Group Corporation

Henan, China Since 2015
Chat Now Send Inquiry
Huazheng Electric Digital Display Portable Ultrasound Flaw Inspection Detector Price

Huazheng Electric Digital Display Portable Ultrasound Flaw Inspection Detector Price

US $ 3,000-5,000 / Piece FOB
1 Piece (MOQ)
More
Main Products: Hipot Tester, Insulation Resistance Tester, Oil Tester, Circuit Breaker, Relay Protection Tester, Capacitor, High Voltage Generator, Testing Transformer, Power Quality Analyzer, Clamp Meter
Contact Supplier
Audited Supplier Audited Supplier Since 2015
Huazheng Electric Manufacturing (Baoding) Co., Ltd.

Manufacturer/Factory

Hebei, China Since 2015
Chat Now Send Inquiry
Seamless Tube Steel Pipe Roto Ultrasonic Testing Equipment

Seamless Tube Steel Pipe Roto Ultrasonic Testing Equipment

US $ 100,000-300,000 / Piece FOB
1 Piece (MOQ)
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Nanjing Bkn Automation System Co., Ltd

Manufacturer/Factory

Jiangsu, China Since 2024
Chat Now Send Inquiry
Ex-Factory Price Plant Flaw Detection Equipment

Ex-Factory Price Plant Flaw Detection Equipment

US $ 7,420-7,580 / Piece FOB
1 Piece (MOQ)
More
Main Products: Agriculture Testing Instrument, Medical Equipment, Weather Monitor, Moisture Meter, Soil NPK Tester, Environmental, Food Quality Test, Incubator, Counter, PCR
Contact Supplier
Audited Supplier Audited Supplier Since 2023
ZHEJIANG TOP INSTRUMENT CO., LTD.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2023
Chat Now Send Inquiry
Pipe, Metal Blocks Cracks, Welds, Sand Holes, Folding Flaw Detector

Pipe, Metal Blocks Cracks, Welds, Sand Holes, Folding Flaw Detector

1 Piece (MOQ)
Contact Supplier
Audited Supplier Audited Supplier Since 2007
Chongqing Gold Mechanical & Electrical Equipment Co., Ltd.

Manufacturer/Factory,Trading Company

Chongqing, China Since 2007
Chat Now Send Inquiry
Digital Nondestructive Tree Detector Portable Plant Flaw Tester

Digital Nondestructive Tree Detector Portable Plant Flaw Tester

US $ 7,420-7,580 / Piece FOB
1 Piece (MOQ)
More
Main Products: Agriculture Testing Instrument, Medical Equipment, Weather Monitor, Moisture Meter, Soil NPK Tester, Environmental, Food Quality Test, Incubator, Counter, PCR
Contact Supplier
Audited Supplier Audited Supplier Since 2023
ZHEJIANG TOP INSTRUMENT CO., LTD.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2023
Chat Now Send Inquiry
Digital Tree Non-Destructive Testing Instrument

Digital Tree Non-Destructive Testing Instrument

US $ 7,420-7,580 / Piece FOB
1 Piece (MOQ)
Contact Supplier
Audited Supplier Audited Supplier Since 2023
ZHEJIANG TOP INSTRUMENT CO., LTD.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2023
Chat Now Send Inquiry
Related Videos
  • What is BKN Brand Ultrasonic Testing Equipment for Flaw Detection in Pipes and Bars
    What is BKN Brand Ultrasonic Testing Equipment for Flaw Detection in Pipes and Bars
    Negotiable
    1 Piece (MOQ)
    Contact Supplier
  • What is Ling60 Metal Wire Rope Ultrasonic Flaw Detector Wire Rope Internal and External Defect Detection
    What is Ling60 Metal Wire Rope Ultrasonic Flaw Detector Wire Rope Internal and External Defect Detection
    Negotiable
    1 Set (MOQ)
    Contact Supplier
  • What is High Frequency NDT Testing Equipment Phased Array Ultrasonic Flaw Detector
    What is High Frequency NDT Testing Equipment Phased Array Ultrasonic Flaw Detector
    Negotiable
    1 Piece (MOQ)
    Contact Supplier
  • What is Portable Ultrasonic Flaw Detector Industrial Digital Supersonic Flaw Detection
    What is Portable Ultrasonic Flaw Detector Industrial Digital Supersonic Flaw Detection
    Negotiable
    1 Piece (MOQ)
    Contact Supplier
F800 Ultrasonic Concrete Wall Crack Depth Inspection Tester Detector

F800 Ultrasonic Concrete Wall Crack Depth Inspection Tester Detector

US $ 1,000-3,000 / Piece FOB
1 Piece (MOQ)
More
Main Products: Mine Car, Mucking Loader, Mining Locomotive, U Steel Support, Mine Support, Wall Cement Plaster Machine, Scraper Conveyor, Crawler Dumper, Concrete Pump
Contact Supplier
Audited Supplier Audited Supplier Since 2012
Shandong China Coal Industrial & Mining Supplies Group Co., Ltd.

Manufacturer/Factory

Shandong, China Since 2012
Chat Now Send Inquiry
Online Ultrasonic Ut Test Device for Brass Extrused Bars Detection

Online Ultrasonic Ut Test Device for Brass Extrused Bars Detection

US $ 100,000-300,000 / Piece FOB
1 Piece (MOQ)
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Nanjing Bkn Automation System Co., Ltd

Manufacturer/Factory

Jiangsu, China Since 2024
Chat Now Send Inquiry
HVHIPOT Handheld Ultrasonic TEV PD Detector Partial Discharge Tester GDPD-313M

HVHIPOT Handheld Ultrasonic TEV PD Detector Partial Discharge Tester GDPD-313M

US $ 3,811-6,508 / Set FOB
1 Set (MOQ)
More
Main Products: Transformer Tester, Insulation Tester, Vacuum Bottle Tester, Partial Discharge System, High Voltage Test Set, Hipot Tester, Vlf Test Equipment, Fault Locating Primary Cable Systems, Proof Testing, Hipotential Test Equipment
Contact Supplier
Audited Supplier Audited Supplier Since 2011
HV Hipot Electric Co., Ltd.

Manufacturer/Factory

Hubei, China Since 2011
Chat Now Send Inquiry
Handheld ultrasonic PD Tester for switchgear partial discharge detection (GDPD-313M)

Handheld ultrasonic PD Tester for switchgear partial discharge detection (GDPD-313M)

US $ 3,811-6,508 / Set FOB
1 Set (MOQ)
More
Power Source : AC220V
Contact Supplier
Audited Supplier Audited Supplier Since 2011
HV Hipot Electric Co., Ltd.

Manufacturer/Factory

Hubei, China Since 2011
Chat Now Send Inquiry

Not exactly what you want?

Post Sourcing Request

portable TEV switchgear partial discharge detection equipment

portable TEV switchgear partial discharge detection equipment

US $ 3,811-6,508 / Set FOB
1 Set (MOQ)
More
Main Products: Transformer Tester, Insulation Tester, Vacuum Bottle Tester, Partial Discharge System, High Voltage Test Set, Hipot Tester, Vlf Test Equipment, Fault Locating Primary Cable Systems, Proof Testing, Hipotential Test Equipment
Contact Supplier
Audited Supplier Audited Supplier Since 2011
HV Hipot Electric Co., Ltd.

Manufacturer/Factory

Hubei, China Since 2011
Chat Now Send Inquiry
Advanced Magnetic Corrosion Measurement System

Advanced Magnetic Corrosion Measurement System

US $ 36,000-40,000 / Piece FOB
1 Piece (MOQ)
Contact Supplier
Audited Supplier Audited Supplier Since 2007
Zhuozhou Tianpeng Imp. & Exp. Trade Co., Ltd.

Manufacturer/Factory,Group Corporation

Hebei, China Since 2007
Chat Now Send Inquiry
New Tree Nondestructive Detector

New Tree Nondestructive Detector

US $ 7,420-7,580 / Piece FOB
1 Piece (MOQ)
More
Main Products: Agriculture Testing Instrument, Medical Equipment, Weather Monitor, Moisture Meter, Soil NPK Tester, Environmental, Food Quality Test, Incubator, Counter, PCR
Contact Supplier
Audited Supplier Audited Supplier Since 2023
ZHEJIANG TOP INSTRUMENT CO., LTD.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2023
Chat Now Send Inquiry
Digital Ultrasonic Flaw Detector Efd-500 Used for Quality Control

Digital Ultrasonic Flaw Detector Efd-500 Used for Quality Control

US $ 1,000-3,000 / set FOB
1 set (MOQ)
More
Certification : CE, ISO
Contact Supplier
Audited Supplier Audited Supplier Since 2020
EBPu Electromechanical Equipment (Zhejiang) Co., Ltd.

Manufacturer/Factory,Trading Company

Zhejiang, China Since 2020
Chat Now Send Inquiry
OEM & ODM High Precision Ultrasonic Flaw Detector Testing Machine

OEM & ODM High Precision Ultrasonic Flaw Detector Testing Machine

US $ 1,600-1,900 / Set FOB
1 Set (MOQ)
More
Main Products: Pile Test Equipment, Concrete Testing Machine, Universal Testing Machine, Soil Testing Equipment
Contact Supplier
Audited Supplier Audited Supplier Since 2022
Hebei Gaotiejian Testing Instrument Co., Ltd.

Manufacturer/Factory

Hebei, China Since 2022
Chat Now Send Inquiry
High Quality Industrial NDT Ultrasonic Testing Ut Flaw Detector for Welding Inspection

High Quality Industrial NDT Ultrasonic Testing Ut Flaw Detector for Welding Inspection

US $ 1,000-3,000 / set FOB
1 set (MOQ)
Contact Supplier
Audited Supplier Audited Supplier Since 2020
Shenzhen Ebpu Technology Co., LTD

Trading Company

Zhejiang, China Since 2020
Chat Now Send Inquiry
Longyu 304 Welded Stainless Steel Pipe China Suppliers Titanium Alloy Stainless Steel Tube/Pipe 813mm Diameter Wholesale LSAW Welded Steel Pipe Exporters

Longyu 304 Welded Stainless Steel Pipe China Suppliers Titanium Alloy Stainless Steel Tube/Pipe 813mm Diameter Wholesale LSAW Welded Steel Pipe Exporters

US $ 1,200-1,800 / Ton FOB
1 Ton (MOQ)
More
Main Products: Pipe, Steel Pipe, Stainless Steel Pipe, Seamless Stainless Steel Pipe, Precision Stainless Steel Pipe, Precision Stainless Steel Tube, Steel Tube, Seamless Steel Tube, Seamless Stainless Steel Tube, Seamless Pipe
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Jiangyin Longyu Stainless Steel Pipe Industry Co., Ltd

Manufacturer/Factory

Jiangsu, China Since 2024
Chat Now Send Inquiry
Digital Ultrasonic Flaw Detector Ultrasonic Testing Diamond Segments Machine for Weld Inspection

Digital Ultrasonic Flaw Detector Ultrasonic Testing Diamond Segments Machine for Weld Inspection

US $ 2,300-2,600 / Set FOB
1 Set (MOQ)
More
Automation : Semi-automatic
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Huanggang Fuli Electromechanical Technology Co., Ltd

Manufacturer/Factory,Trading Company

Hubei, China Since 2024
Chat Now Send Inquiry
Ultrasonic Flaw Detector Portable Industrial Digital Supersonic Flaw Detector Hypersonic Analyzer Industrial Flaw Finder

Ultrasonic Flaw Detector Portable Industrial Digital Supersonic Flaw Detector Hypersonic Analyzer Industrial Flaw Finder

US $ 700-1,200 / Piece FOB
1 Piece (MOQ)
More
Main Products: Thermal Gravimetric Analyzer, Differential Scanning Calorimeter, Helium Mass Spectrometer, Xrf Portable Analyzer, Fluorescence Spectrometer, RoHS Environmental Analyzer, Contact Angle Testers, Universal Tensile Compression Testing Machine, Climatic Test Chambers, Plastic Testing Machine
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Hunan Gonoava Instrument Co Ltd

Manufacturer/Factory

Hunan, China Since 2024
Chat Now Send Inquiry
Automatic Circumferential Seam Welding 100% Ultrasonic Flaw Detection Marine Machinery, Vehicle Engineering Machinery Hydraulic Cylinder

Automatic Circumferential Seam Welding 100% Ultrasonic Flaw Detection Marine Machinery, Vehicle Engineering Machinery Hydraulic Cylinder

US $ 1,000-10,000 / Piece FOB
1 Piece (MOQ)
More
Acting Way : Double Acting
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Qingdao Zhonghai Marine Machinery Co., Ltd.

Manufacturer/Factory

Shandong, China Since 2023
Chat Now Send Inquiry
Ultrasonic Flaw Detectors Ultrasonic Flaw Machine Pxut-260cconstruction & Building Test Equipment

Ultrasonic Flaw Detectors Ultrasonic Flaw Machine Pxut-260cconstruction & Building Test Equipment

US $ 100-1,000 / Set FOB
1 Set (MOQ)
More
Main Products: Construction Material Test Equipment, Pavement Test Equipment, Non Destructive Test Equipment, Laboratory Equipments, Material Testing Machines, Industry Products Test Equipment
Contact Supplier
Audited Supplier Audited Supplier Since 2020
Wuxi Serve Real Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2020
Chat Now Send Inquiry
Longyu Steel Tube Pipe China High Quality OEM LSAW Welded Steel Pipe Supplier 2800mm Diameter Wholesale Welded Steel Pipe Construction Exporters

Longyu Steel Tube Pipe China High Quality OEM LSAW Welded Steel Pipe Supplier 2800mm Diameter Wholesale Welded Steel Pipe Construction Exporters

US $ 1,200-1,800 / Ton FOB
1 Ton (MOQ)
More
Usage : Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Jiangyin Longyu Stainless Steel Pipe Industry Co., Ltd

Manufacturer/Factory

Jiangsu, China Since 2024
Chat Now Send Inquiry
Ultrasonic Flaw Detector Detection Equipment Testing Flaw Detector Boat Form Block Testing Equipment
View More

Related Searches

Eddy Current Flaw Detector

Browse by Categories

Home > Tools & Hardware > Building Hardware > Construction Pipe & Tube > Steel Pipe & Tube
1/419
TOP

Search Filter

Categories

More Less
  • Steel Pipe & Tube
  • Steel Round Bar
  • Stainless Steel
  • Titanium
  • Agricultural Machinery Parts
  • Steel Coil & Strip
  • Sand Casting
  • Pressure Vessel
  • Steel Sheet & Plate
  • Engineering & Construction Machinery Parts

Control

More Less
  • Computer Control

Display

More Less
  • Digital

Load Way

More Less
  • Electronic Load

Loading Method

More Less
  • Dynamic Load

Power Source

More Less
  • AC220V

Company Type

More Less
  • Manufacturer/Factory
  • Trading Company
  • Group Corporation
  • Other

Company Location

More Less
  • Jiangsu
  • Shandong
  • Zhejiang
  • Guangdong
  • Henan
  • Hebei
  • Shanghai
  • Beijing
  • Sichuan
  • Tianjin
  • Shanxi
  • Liaoning
  • Anhui
  • Hubei
  • Shaanxi
  • Hunan
  • Fujian
  • Guizhou
  • Chongqing
  • Jiangxi
  • Guangxi
Reset Done