Cov hlau tsis tshua muaj hlau yog cov hlau uas muaj cov hlau me me xws li manganese, nickel, chromium, molybdenum, thiab vanadium.
Cov cwj pwm tseem ceeb
Kev lag luam tshwj xeeb yam ntxwv
| Hom | Gnee |
|
Qib |
carbon hlau |
| Ua siab ntev | ±1% |
|
Lub sij hawm xa tuaj |
7 Hnub |
| Txuj | AiSi, ASTM, BS, DIN, GB, JIS |
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