當(dāng)前位置:
首頁 >
標(biāo)準(zhǔn)詳情頁

Iso 6508-3 - Metallic Materials - Rockwell Hardness Test (scales A,b,c,d,e,f,g,h,k,n,t) - Part 3: Calibration Of Reference Blocks
出版:British Standards Institution

專家解讀視頻