Products

Suppliers
Filter Gallery
62,103

Alumina Powder

Products
Aluminum Oxide Powder Alumina Oxide Powder Polishing Powder Micro Powder Brown Corundum Powder White Powder

Sorry! No matches were found.

Brown Corundum Brown Fused Alumina Abrasive Powder

Brown Corundum Brown Fused Alumina Abrasive Powder

US $ 0.56-0.74 / kg FOB
100 kg (MOQ)
More
Main Products: White Fused Alumina, White Corundum Powder, Brown Corundum Powder, Alumina Powder, Green Silicon Carbide, Black Silicon Carbide
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Zhengzhou Xinli Wear-Resistant Material Co., Ltd.

Manufacturer/Factory

Henan, China Since 2023
Chat Now Send Inquiry
Price of Brown Fused Alumina Powder

Price of Brown Fused Alumina Powder

US $ 650-790 / Ton FOB
1 Ton (MOQ)
More
Type : Grinding Ball
Contact Supplier
Since 2024
Luoyang Longrui New Materials Co.,Ltd

Manufacturer/Factory

Henan, China Since 2024
Chat Now Send Inquiry
China Supply High Quality Alumina Powder for Ceramic

China Supply High Quality Alumina Powder for Ceramic

US $ 400-700 / Ton FOB
28 Tons (MOQ)
More
Main Products: Wollastonite, Talc, Calcined Talc, Dolomite, Diopside, Bentonite, Zirconium Replacement Ceramic Brightener, Kaolin, Dead Burned Magnesite, Caustic Calcined Magnesite
Contact Supplier
Audited Supplier Audited Supplier Since 2020
AMANDA INTERNATIONAL PRIVATE LIMITED

Manufacturer/Factory,Trading Company

Liaoning, China Since 2020
Chat Now Send Inquiry
China Factory Price Aluminium Hydroxide Powder Ath H-Wf-14/25/50/75/90 Ath for Solid Surface Solution, Alumina Trihydrate, Acrylic Resin Powder CAS 21645-51-2

China Factory Price Aluminium Hydroxide Powder Ath H-Wf-14/25/50/75/90 Ath for Solid Surface Solution, Alumina Trihydrate, Acrylic Resin Powder CAS 21645-51-2

US $ 350-800 / Ton FOB
1 Ton (MOQ)
More
Kind : Alkaline Oxide
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Zibo Joyreach New Materials Co., Ltd.

Manufacturer/Factory,Trading Company

Shandong, China Since 2019
Chat Now Send Inquiry
99% Reactive Alumina Powder Tch-5h for Refractory Castable

99% Reactive Alumina Powder Tch-5h for Refractory Castable

US $ 1 / Piece FOB
1 Piece (MOQ)
More
Main Products: Alumina Ceramic, Calcined Alumina, Alumina Ceramic Ball, Alumina Grinding Ball, Alumina Grinding Cylinder, Alumina Ceramic Beads, Ceramic Insulator, Alumina Wear Tile, Alumina Lining Brick, Alumina Ceramic Ring
Contact Supplier
Audited Supplier Audited Supplier Since 2010
Lianyungang Zhong Ao Aluminium Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2010
Chat Now Send Inquiry
Calcined Alumina Oxide Powder for Refractory, Sintering Corundum and Ceramics

Calcined Alumina Oxide Powder for Refractory, Sintering Corundum and Ceramics

US $ 460-1,500 / Ton FOB
1 Ton (MOQ)
More
Form : Powder
Contact Supplier
Audited Supplier Audited Supplier Since 2020
Zibo Aotai New Material Technology Co., Ltd.

Manufacturer/Factory

Shandong, China Since 2020
Chat Now Send Inquiry
Min Purity 99.5% Alumina Oxide Alpha Powder Price From Zibo Firstar

Min Purity 99.5% Alumina Oxide Alpha Powder Price From Zibo Firstar

US $ 600-700 / Ton FOB
1 Ton (MOQ)
More
Main Products: Alumina Ceramic, Ceramic Wear Linings, Ceramic Grinding Media, Silicon Carbide Ceramic
Contact Supplier
Audited Supplier Audited Supplier Since 2019
ZIBO QIMINGXING NEW MATERIAL INCORPORATED CO., LTD.

Manufacturer/Factory

Shandong, China Since 2019
Chat Now Send Inquiry
Calcined Alumina Powder for Ceramic Industry

Calcined Alumina Powder for Ceramic Industry

US $ 390-700 / Ton FOB
1 Ton (MOQ)
More
Quality : First Class
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Zibo Yishengjia Aluminum Co., Ltd.

Manufacturer/Factory,Trading Company

Shandong, China Since 2023
Chat Now Send Inquiry
Abrasive Material Brown Fused Alumina Oxide Powder Type

Abrasive Material Brown Fused Alumina Oxide Powder Type

US $ 300-790 / Ton FOB
1 Ton (MOQ)
More
Main Products: Activated Carbon, Coal Activated Carbon, Granular Activated Carbon, Anthracite Filter Media, Calcined Anthracite Coal, Manganese Sand, Polyacrylamide, Poly Aluminium Chloride
Contact Supplier
Since 2021
Gongyi Vast Clean Co., Ltd.

Trading Company

Henan, China Since 2021
Chat Now Send Inquiry
Abrasive Powder White Fused Alumina Emery Powder Factory Price

Abrasive Powder White Fused Alumina Emery Powder Factory Price

US $ 500-900 / Ton FOB
1 Ton (MOQ)
More
Particle Size : Abrasive
Contact Supplier
Audited Supplier Audited Supplier Since 2019
Ningxia Baiyun Carbon Co., Ltd.

Manufacturer/Factory,Trading Company

Ningxia, China Since 2019
Chat Now Send Inquiry
High Water Dispersibility Fine Boehmite Alumina Oxide Powder for Catalyst Supporter

High Water Dispersibility Fine Boehmite Alumina Oxide Powder for Catalyst Supporter

US $ 2-3 / kg FOB
100 kg (MOQ)
More
Main Products: Aluminium Oxide, Alumina Ball, Alumina Carrier, Molecular Sieve, Zsm-5, Ts-1 Zeolite, Y-Type Molecular Sieve, Beta Molecular Sieve, Pseudoboehmite, Catalyst Carrier
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Zibo Jiulong Chemical Co., Ltd.

Manufacturer/Factory,Trading Company

Shandong, China Since 2023
Chat Now Send Inquiry
White Fused Alumina Micro Powder: Quality Guaranteed, Fine Grinding

White Fused Alumina Micro Powder: Quality Guaranteed, Fine Grinding

US $ 810-830 / Ton FOB
5 Tons (MOQ)
More
Natural Abrasive Type : Natural Corundum
Contact Supplier
Since 2024
Zhengzhou Huazhijin Abrasive Co., Ltd.

Trading Company

Henan, China Since 2024
Chat Now Send Inquiry
Abrasive Grains Oxide Grinding Powder Blasting Media Other Chemical Fillings Metal Filling
China Factory High Purity 99.6% Calcined Alumina Powder for Stainless Steel Tableware Polishing

China Factory High Purity 99.6% Calcined Alumina Powder for Stainless Steel Tableware Polishing

US $ 890-1,000 / Ton FOB
10 Tons (MOQ)
More
Main Products: TiO2, Rutile Sand, Mineral, Inorganic Chemicals, Pigments, Dyestuff, Agricultural Chemicals
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Hebei Yingye New Energy Technology Co., Ltd

Manufacturer/Factory,Trading Company

Hebei, China Since 2024
Chat Now Send Inquiry
China Manufacture Alumina Powder Al2O3 80 Grit White Aluminum Oxide Powder

China Manufacture Alumina Powder Al2O3 80 Grit White Aluminum Oxide Powder

US $ 650-800 / Ton FOB
1 Ton (MOQ)
More
Natural Abrasive Type : Natural Corundum
Contact Supplier
Audited Supplier Audited Supplier Since 2018
Jinan Junda Industrial Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Shandong, China Since 2018
Chat Now Send Inquiry
High Density Fine Calcined Alpha Alumina Powder for Ceramics

High Density Fine Calcined Alpha Alumina Powder for Ceramics

US $ 970-1,100 / Ton FOB
3 Tons (MOQ)
More
Main Products: Die Casting, Flange, Auto Parts OEM, Customized Casting Parts, Aluminum Hydroxide, Aluminum Oxide, Casting Parts, Casting Parts for Auto, Casting Parts for Car, Casting Parts for Air Conditioner
Contact Supplier
Audited Supplier Audited Supplier Since 2017
Zibo Gongbu Industry & Trade Co., Ltd.

Manufacturer/Factory

Shandong, China Since 2017
Chat Now Send Inquiry
Polishing Used White Fused Alumina Powder 99.9% Market Price

Polishing Used White Fused Alumina Powder 99.9% Market Price

US $ 525-700 / Ton FOB
5 Tons (MOQ)
More
Source : Artificial Abrasives
Contact Supplier
Audited Supplier Audited Supplier Since 2013
Dengfeng City Ludian Town Xingguang Abrasives Factory

Manufacturer/Factory

Henan, China Since 2013
Chat Now Send Inquiry
Sodium Bicarbonate Powder Available/Two-in-One Sandblasting System Various Types of Alumina Powder.

Sodium Bicarbonate Powder Available/Two-in-One Sandblasting System Various Types of Alumina Powder.

US $ 90-120 / Piece FOB
1 Piece (MOQ)
More
Main Products: Dental Air Polisher, Dental Handpiece, Handpiece Spare Parts, Low Speed Handpiece, Dental Air Arbrasion, Dental Air Scaler, Dental Ar Heater, Ultrasonic Scaler, Dental Dust Collector, Apex Locator
Contact Supplier
Audited Supplier Audited Supplier Since 2015
Foshan M&Y Medical Instrument Co., Ltd.

Manufacturer/Factory

Guangdong, China Since 2015
Chat Now Send Inquiry
30-50μ M Alumina 99.9% Alpha Micron Alumina Powder α -Phase High-Purity Semiconductor Material

30-50μ M Alumina 99.9% Alpha Micron Alumina Powder α -Phase High-Purity Semiconductor Material

US $ 40-50 / kg FOB
1 kg (MOQ)
More
Kind : Amphoteric Oxide
Contact Supplier
Audited Supplier Audited Supplier Since 2023
CHANGZHOU KONADA NEW MATERIALS TECHNOLOGY CO.,LTD.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2023
Chat Now Send Inquiry
Wfa White Fused Alumina Aluminum Oxide Corundum Abrasive Powder

Wfa White Fused Alumina Aluminum Oxide Corundum Abrasive Powder

US $ 700-1,100 / Ton FOB
1 Ton (MOQ)
More
Main Products: Synthetic Diamond Powder CBN, Boron Carbide B4c, Boron Carbide Sandblasting Nozzles, White Fused Alumina, White/Brown/Pink Aluminum Oxide, Silicon Carbide, Sandblasting Abrasives, Grinding Polishing Abrasive Media
Contact Supplier
Audited Supplier Audited Supplier Since 2017
Kumthai Abrasives Co., Ltd.

Manufacturer/Factory,Trading Company

Henan, China Since 2017
Chat Now Send Inquiry
Alumina Powder Dental Aluminum Oxide Sandblaster Powder

Alumina Powder Dental Aluminum Oxide Sandblaster Powder

US $ 10-15 / Piece FOB
1 Piece (MOQ)
More
Certification : CE
Contact Supplier
Audited Supplier Audited Supplier Since 2022
Foshan Yuyo Medical Instrument Co., Ltd.

Manufacturer/Factory

Guangdong, China Since 2022
Chat Now Send Inquiry
Related Videos
  • What is Brown Corundum Brown Fused Alumina Abrasive Powder
    What is Brown Corundum Brown Fused Alumina Abrasive Powder
    Negotiable
    100 kg (MOQ)
    Contact Supplier
  • What is China Factory Price Aluminium Hydroxide Powder Ath H-Wf-14/25/50/75/90 Ath for Solid Surface Solution, Alumina Trihydrate, Acrylic Resin Powder CAS 21645-51-2
    What is China Factory Price Aluminium Hydroxide Powder Ath H-Wf-14/25/50/75/90 Ath for Solid Surface Solution, Alumina Trihydrate, Acrylic Resin Powder CAS 21645-51-2
    Negotiable
    1 Ton (MOQ)
    Contact Supplier
  • What is 99% Reactive Alumina Powder Tch-5h for Refractory Castable
    What is 99% Reactive Alumina Powder Tch-5h for Refractory Castable
    Negotiable
    1 Piece (MOQ)
    Contact Supplier
  • What is Calcined Alumina Oxide Powder for Refractory, Sintering Corundum and Ceramics
    What is Calcined Alumina Oxide Powder for Refractory, Sintering Corundum and Ceramics
    Negotiable
    1 Ton (MOQ)
    Contact Supplier
Fine Powder of Calcined Alumina for Glass, Flame Retardant, High Alumina Glaze

Fine Powder of Calcined Alumina for Glass, Flame Retardant, High Alumina Glaze

US $ 500-1,100 / Ton FOB
1 Ton (MOQ)
More
Main Products: Aluminum Hydroxide, Ath, Mdh, Acrylic Impact Modifer Aim, Processing Aids, Melamine, Ammonium Polyphosphate
Contact Supplier
Audited Supplier Audited Supplier Since 2022
QINGDAO PENGFENG NEW MATERIAL TECHNOLOGY CO., LTD.

Manufacturer/Factory,Trading Company

Shandong, China Since 2022
Chat Now Send Inquiry
Different Standards of Alumina, Aluminium Oxide Al2O3 Powder CAS 1344-28-1

Different Standards of Alumina, Aluminium Oxide Al2O3 Powder CAS 1344-28-1

US $ 800-1,500 / Ton FOB
1 Ton (MOQ)
More
Grade Standard : Industrial Grade
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Hebei Jietou Chemical Technology Co., Ltd.

Manufacturer/Factory

Hebei, China Since 2023
Chat Now Send Inquiry
Brown Fused Alumina Powder 320#

Brown Fused Alumina Powder 320#

US $ 1,000-1,050 / Ton FOB
5 Tons (MOQ)
More
Main Products: Brown Fused Alumina, Abrasive Wheels, Resin Grinding Wheels, Resin Cut-off Wheels, White Fused Alumina, Iron Sulfide, Carborundum, Synthetic Corundum, Sand Cloth, Sand Paper
Contact Supplier
Audited Supplier Audited Supplier Since 2022
Luoyang Weixiang Abrasives Co., Ltd.

Manufacturer/Factory,Trading Company

Henan, China Since 2022
Chat Now Send Inquiry
Factory Price Sell Lanthanum Modified Alumina Powder From Easchem

Factory Price Sell Lanthanum Modified Alumina Powder From Easchem

US $ 2.5-125.5 / Piece FOB
1 Piece (MOQ)
More
Quality : First Class
Contact Supplier
Audited Supplier Audited Supplier Since 2021
CHANGSHA EASCHEM CO., LIMITED

Manufacturer/Factory

Hunan, China Since 2021
Chat Now Send Inquiry

Not exactly what you want?

Post Sourcing Request

Grit 12-220 Brown Fused Alumina Bfa Brown Corundum Powder for Abrasives

Grit 12-220 Brown Fused Alumina Bfa Brown Corundum Powder for Abrasives

US $ 215-760 / Ton FOB
1 Ton (MOQ)
More
Main Products: Coconut Shell Activated Carbon, Coal Based Activated Carbon, Coal Based Pellet Activated Carbon, Silicon Carbide, Carburizer, Polyacrylamide, Anthracite Filter Media, Garnet, Walnut Shell, Powder Activated Carbon
Contact Supplier
Since 2022
Ningxia Yongruida Carbon Co., Ltd.

Manufacturer/Factory,Trading Company

Ningxia, China Since 2022
Chat Now Send Inquiry
White 4n Nano Alumina Al2O3 Aluminium Oxide Powder 1344-28-1 Aluminum/Alumina/Al2O3 Polishing Powder 99.99%

White 4n Nano Alumina Al2O3 Aluminium Oxide Powder 1344-28-1 Aluminum/Alumina/Al2O3 Polishing Powder 99.99%

US $ 8-20 / kg FOB
1 kg (MOQ)
More
Kind : No Salt Oxide
Contact Supplier
Audited Supplier Audited Supplier Since 2021
Hebei Ruisite Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Hebei, China Since 2021
Chat Now Send Inquiry
Dental Aluminum Oxide Powder for Microblaster Alumina Sandblasting Machine

Dental Aluminum Oxide Powder for Microblaster Alumina Sandblasting Machine

US $ 20-39 / Piece FOB
1 Piece (MOQ)
More
Main Products: Dental Unit, Handpiece, LED Curing Light, Dental Scaler, Oil-Free Air Compressor, Sterilizer, X Ray Sensor, X Ray Unit, Dentist Stool, Endodontic Treatment Machine
Contact Supplier
Audited Supplier Audited Supplier Since 2016
Foshan Vimel Dental Equipment Co., Ltd.

Manufacturer/Factory,Trading Company

Guangdong, China Since 2016
Chat Now Send Inquiry
Alumina Powder with 99.5% Al2O3 for Ceramic, Refractory, Glazes

Alumina Powder with 99.5% Al2O3 for Ceramic, Refractory, Glazes

US $ 460-900 / Ton FOB
1 Ton (MOQ)
More
Quality : First Class
Contact Supplier
Audited Supplier Audited Supplier Since 2010
Lianyungang Zhong Ao Aluminium Co., Ltd.

Manufacturer/Factory,Trading Company

Jiangsu, China Since 2010
Chat Now Send Inquiry
Alumina Oxide Powder for Sintering Corundum Al2O3

Alumina Oxide Powder for Sintering Corundum Al2O3

US $ 460-1,500 / Ton FOB
1 Ton (MOQ)
More
Main Products: Aluminium Hydroxide, Frame Retardant Filler, Alumina Powder, Calcined Alumina, Aluminum Oxide, Zeolite, Polyaluminum Cholide, Ferrous Sulfate
Contact Supplier
Audited Supplier Audited Supplier Since 2020
Zibo Aotai New Material Technology Co., Ltd.

Manufacturer/Factory

Shandong, China Since 2020
Chat Now Send Inquiry
First Grade Abrasive Brown Fused Alumina Polishing Sand Paper Brown Fused Alumina Powder

First Grade Abrasive Brown Fused Alumina Polishing Sand Paper Brown Fused Alumina Powder

US $ 650-790 / Ton FOB
1 Ton (MOQ)
More
Type : Grinding Ball
Contact Supplier
Since 2024
Luoyang Longrui New Materials Co.,Ltd

Manufacturer/Factory

Henan, China Since 2024
Chat Now Send Inquiry
High-Temperature Ceramic Polishing Agent - High Purity Alumina Coarse Powder (CAS No: 1344-28-1)

High-Temperature Ceramic Polishing Agent - High Purity Alumina Coarse Powder (CAS No: 1344-28-1)

US $ 420-1,600 / Ton FOB
1 Ton (MOQ)
More
Main Products: Aluminium Hydroxide, Aluminium Oxide, Pseudoboehmite, 4A Zeolite, Aluminium Sulfate, Tabular Corundum, Molecular Sieve
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Zibo Yishengjia Aluminum Co., Ltd.

Manufacturer/Factory,Trading Company

Shandong, China Since 2023
Chat Now Send Inquiry
99% High Purity Ultrafine Al2O3 Alumina Oxide Powder for Surface Preparation

99% High Purity Ultrafine Al2O3 Alumina Oxide Powder for Surface Preparation

US $ 800-950 / Ton FOB
10 Tons (MOQ)
More
Kind : Amphoteric Oxide
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Hebei Yingye New Energy Technology Co., Ltd

Manufacturer/Factory,Trading Company

Hebei, China Since 2024
Chat Now Send Inquiry
Price of Brown Fused Alumina Corundum Sand Aluminium Powder

Price of Brown Fused Alumina Corundum Sand Aluminium Powder

US $ 590-679.5 / Ton FOB
5 Tons (MOQ)
More
Main Products: Activated Carbon, Brown Fused Alumina, White Fused Alumina, Silicon Carbide, Calcined Bauxite, Calcined Petroleum Coke, Graphite Petroleum Coke, Calcined Anthracite Coal/Carbon Raiser, Walnut Shell, Met Coke
Contact Supplier
Audited Supplier Audited Supplier Since 2013
Dengfeng City Ludian Town Xingguang Abrasives Factory

Manufacturer/Factory

Henan, China Since 2013
Chat Now Send Inquiry
High Quality China Alumina Corporation Calcined Alumina Powder

High Quality China Alumina Corporation Calcined Alumina Powder

US $ 400-550 / Ton FOB
10 Tons (MOQ)
More
Classification : Alumina
Contact Supplier
Audited Supplier Audited Supplier Since 2022
Zibo Unique Intelligent Science & Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Shandong, China Since 2022
Chat Now Send Inquiry
High Quality 99.9% Nano Aluminum Oxide Alumina Powder CAS 1344-28-1 Al2O3 Nanopowder Nanoparticles

High Quality 99.9% Nano Aluminum Oxide Alumina Powder CAS 1344-28-1 Al2O3 Nanopowder Nanoparticles

US $ 100 / kilograms FOB
1 kilograms (MOQ)
More
Main Products: Chemicals, Daily Chemicals, Auxiliary Chemicals, Additive, Watertreatment Chemicals, Organic Acid, Silicone, Fire Retardant
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Shandong Yinglang Chemical Co., Ltd

Manufacturer/Factory

Shandong, China Since 2023
Chat Now Send Inquiry
Alumina Oxide Powder Aluminium Oxide Powder White Fused Alumina Powder White Corundum Powder

Alumina Oxide Powder Aluminium Oxide Powder White Fused Alumina Powder White Corundum Powder

US $ 0.6-0.9 / kg FOB
25,000 kg (MOQ)
More
Hardness : Superabrasive
Contact Supplier
Audited Supplier Audited Supplier Since 2022
Shandong Yankem Industry Co., Ltd

Manufacturer/Factory

Shandong, China Since 2022
Chat Now Send Inquiry
Aluminum Oxide Powder Alumina Oxide Powder Polishing Powder Micro Powder Brown Corundum Powder White Powder
View More

Related Searches

Wood Powder Powder Oil Rubber Powder Powder Spraying Alumina Ginger Powder Powder Brush Whole Milk Powder Instant Tea Powder Wholesale Alumina Powder

Browse by Categories

Home > Tools & Hardware > Abrasive & Grinding > Abrasive Grains
1/834
TOP

Search Filter

Categories

More Less
  • Abrasive Grains
  • Oxide
  • Grinding Powder
  • Blasting Media
  • Other Chemical Fillings
  • Metal Filling
  • New-type Chemical Material
  • Desiccant & Sorbent
  • Catalyst & Active Agent
  • Chemical Auxiliary

Artificial Abrasive Type

More Less
  • Corundum Abrasives
  • Silicon Carbide Abrasive

Hardness

More Less
  • Superabrasive
  • Conventional Abrasive

Natural Abrasive Type

More Less
  • Natural Corundum
  • Garnet
  • Natural Diamond

Particle Size

More Less
  • Abrasive
  • Powder
  • Ultrafine
  • Mill

Source

More Less
  • Artificial Abrasives
  • Natural Abrasives

Company Type

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

Company Location

More Less
  • Henan
  • Shandong
  • Jiangsu
  • Hebei
  • Guangdong
  • Shanghai
  • Hunan
  • Jiangxi
  • Liaoning
  • Zhejiang
  • Tianjin
  • Shanxi
  • Ningxia
  • Fujian
  • Anhui
  • Beijing
  • Hongkong S.A.R.
  • Guangxi
  • Shaanxi
  • Sichuan
  • Chongqing
  • Gansu
  • Hubei
  • Inner Mongolia
  • Hainan
  • Heilongjiang
  • Guizhou
  • Macao S.A.R.
  • Yunnan
Reset Done