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WebSCr420. Classification: Structural steel Chromium steel. Standards: JIS G 4053 : Low-alloyed steels for machine structural use. Applications: Low-alloyed steels for machine structural use manufactured by hot rolling, hot forging and hot extruding. Chemical composition 成分 % of grade SCr420. C. WebScribd is the world's largest social reading and publishing site. how to make a gorilla tag model

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