Dongying Hengrui Precision Metal Co., Ltd (Abbreviated form“HENGRUI CASTING”) is a comprehensive manufacturer of investment castings and has the abilities of investment casting, mould design and making, machining, electro-polishing, finish polishing, heat treatment and so on. It is located in Dongying City, Shandong Province of China, the hinterland of Shengli Oil Field which is the second oil field in China. It is 300 kilometers apart...
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