Hardware stamping tuag siv ntau yam hlau thiab cov ntaub ntawv uas tsis yog hlau, uas yog feem ntau carbon steel, alloy steel, cam khwb cia hlau, cam khwb cia hlau, nyuaj alloy, tsis tshua muaj melting point alloy, zinc-raws li alloy, aluminium bronze, thiab lwm yam. stamping tuag yuav tsum muaj siab hardness, siab stre...
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