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shandong state-active hengfa metal materials co., ltd. mainly engages in pickling seamless steel pipes, pickling passivation seamless pipes, pickling fluid seamless pipes, pickling phosphated seamless pipes
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tianjin jinxin steel pipe main business: L245N seamless steel pipe, Q345C seamless steel pipe, 15 CrMoG seamless steel pipe, L360N seamless steel pipe, Q345E seamless steel pipe, seamless steel pipe, seamless pipe, hot-dip galvanized seamless pipe and other steel pipe products, steel pipe manufacturers sales hot: 022-26616888
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grey pipe industry is a company engaged in pickling seamless steel pipes, pickling passivation seamless steel pipes, and pickling passivation steel pipes. friends from all walks of life are welcome to visit the factory: 15166580844
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