h62 tm copper bar

Common raw materials

Forging display

CNC processing

|GB/T 4423-2020

2020929 · :GB/T 4423-2020. : . :Copper and copper alloy cold-drawn rod and bar. : . .

contact

GB/T 4423-2020 .pdfGB/T 4423-2007 GB/T 4423-1992 GB 4423-1992 .pdfGB-T 4423-2007.pdf•

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