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