1、The zinc coper alloy pouring, the alloy constriction and supplement pouring;
鋅銅合金灌鑄、合金收縮及其收縮孔補灌溫度試驗成果；

2、Wrot coper is exclusively used for fittings.
銅專門用作配件材料。

3、STRESS MEASUREMENT OF ANQING COPER MINING
安慶銅礦地應力測量

4、A Compressor of US COPER Co and Its Computer Control
美國COPER公司壓縮機及其計算機控制

coper翻譯