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Huanghe Road,Dongying,Shandong,China China
Contact Person Mr. Eric Zhang
Address Huanghe Road, Dongying, Shandong
1. Oil well tool API 5CT tubing and casing couplings 2.grade:P110 K55 J55 L80 N80 3.thread:EU NU LC BC SC 4.size:tubing coupling:form 1.9"to 4 1/2
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