the the predecessor company of Zehan Machinery — Qingdao Pengxing Copper & Aluminum Material Co., Ltd was established for trading copper and aluminum material.
Qingdao Zehan Machinery Manufacturing Co., Ltd was established, fousing on machining service for CNC machining parts, brass hot forging parts, sheet metal fabrication and precision casting parts, etc.
Invested Qingdao Kuoyuan Commercial and Trading Co., Ltd, focusing on hot dip galvanizing service.
Invested Qingdao Xinzhonghan Precision Copper Tube Co., Ltd, specialized in precision copper tube manufacturing and selling.
Invested Qingdao Huaxiangda Machinery Co., Ltd, focusing on sheet metal fabrication and welding serivice, laser cutting and flame cutting service.
Invested Qingdao Ruixinming Technology Co., ltd. it is specialized in aluminum anodizing. Annual turnover about $120 million
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