STL規范號和牌號怎么寫,STL規范號和牌號怎么寫?
STL = stellite alloys,司太立合金的典型品牌有:Stellite1,Stellite4,Stellite6,Stellite8,Stellite12,Stellite20,Stellite31,Stellite100等規范:ONORM M3170 Steels for barrels of small arms; quality specifications
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