· spec 5la asmi, gb/t9711.m q/cnpc38-20q din din30678-199a sy/t0413-2002s q/sy xo 8-2003n q/syxq...
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- · spec 5LA ASMI, GB/T9711.m Q/CNPC38-20Q DIN DIN30678-199a SY/T0413-2002s Q/SY XO 8-2003N Q/SYXQ CSA RP5L2-200a Q/SYXQ Chairman:Bai Gongli 02 BSW
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Post on 18-May-2018
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