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ASTM B135m H65 C2300 Copper Round Pipe DN20 High Strength Alloy Material Tube C12000 Cooper Tube, Find Details and Price about Copper Pipe Copper Fittings from ASTM B135m H65 C2300 Copper Round Pipe DN20 High Strength Alloy Material Tube C12000 Cooper Tube - BAOTOU STEEL (SHANDONG) GROUP CO.,LTD.