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Chinese National Standard Category: Powder metallurgy material and product

English Title: Steel bonded tungsten carbides--Determination of ROck-well hardness (scales C and A)
Chinese Title: 碳化钨钢结硬质合金 洛氏硬度(C和A)的测定
Standard No.: GB/T 10420-1989
Category No.: H72
Issued by:
Issued on: 1989-02-22
Implemented on: 1990-1-1
Status: superseded
Superseded by:GB/T 10420-2002
Superseded on:
Abolished on:
Superseding:
Word Count:2000 words
Similar Standards: GB/T 10420-2002   DZ 21-1982   GB/T 10419-2002   GB/T 10566-1989   GB/T 41883-2022   GB/T 26047-2022   GB/T 26052-2022   GB/T 41337-2022   GB/T 38977-2020   GB/T 38987-2020   GB/T 38981-2020   GB/T 38384-2019   GB/T 6887-2019   GB/T 2081-2018   GB/T 3462-2017   GB/T 14445-2017   GB/T 34508-2017   GB/T 6886-2017   GB/T 34646-2017   GB/T 32930-2016  
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