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???????13396220692??17862525099??17862512888??18963580692
?????2418524989@qq.com
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??????????????и??????????????66??
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50*2200*8000+ 32??
60*2200*7000+ 75??
50*4030*555+ 98??
70*2200*9500+ 32??
80*2200*8000+ 56??
??????????????????????
16MnR????????????????,?????????????????????????????ò?????????????????????????á????????????????????????????????????Mn????????????20G??412-540?????????????????450-655????????????19-21%????20G?????24%?
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????????32mm????????????????????????
??????? /Pro
??????? /CONTACT
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COPYRIGHT ?????????????????? ????????ICP??2021038300?? ???????????????