金沙城娱乐场官网平台

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2019-08-23

???ν????????????6??77-9??8MPa?????????????1??5mm??????????????90????????????????????????????????ε?С??????????????:????????????????538?棬???????????????????????????????????????????????????????????????豸??????????????????????????????????????豸??????????

1.??????????????????????????????????????120??304?????18-8????18-20%????8-10%????????????????????760?档?????-196~538????????????????????????縯??????????160??304L????? ???????????0.03%??????????????????760?档????????????304????????????????????????????????????縯????????304??????????????140??316?????18-12????18%????12%??????304????????????2%?????????????????????????????????????????????????????и????????????????????????????760?档????????160??

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