Data Source:
YJT Fastener Database (164580.com)
Standard:
GB /T 1172 - 1999
Chinese Name:
黑色金屬硬度及強度換算值
English Name:
Conversion of hardness and strength for ferrous metal
Chinese URL:
Chinese Source Page
English URL:
English Source Page
License:
Commercial reuse, redistribution, or AI training usage requires authorization.