At the beginning of the new year, our company received an order of 130pcs special pup joint from South American customer. Special pup joint need
higher requirement in processing than regular API pup joint. The material which customer requested is 4140 and 9Cr. In response to this order, we have organized
technical departments and production departments,earnestly formulate production processes and raw materials procurement programs, to ensure product quality
compliance with the drawings and standards requirements completely.
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