H59国标六角铜管规格全 C3602环保黄铜簿壁管 C17300铍铜空心管

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H59 standard six-point copper tube, all c3602 green brass book wall tube, c17300 beryllium copper ho

East chang city upgrading metal materials ltd

Address:26 west west road, east china city
Tel:13688980268

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13688980268

H59国标六角铜管 规格全 C3602环保黄铜簿壁管 C17300铍铜空心管