Tianjin ZhengAo International Trading Co.Ltd. is a professional import and export enterprise which was approved by the relevant state departments. With a registered capital of 20 million Yuan, ZhengAo mainly imports copper ore, nickel sheets and other related industrial products and exports non-ferrous metals such as magnesium ingot,magnesium alloy plates, magnesium alloy sheet, magnesium alloy bar/rod,magnesium alloy tube.Besides, domestic business of these minerals also be conducted. The ...