Shanghai Profit-Bao Petroleum Commodity Equipment Co., Ltd. can supply the fast delivery services and first-class services for industry of oil , natural gas, refining, chemical , electric power, and also can collect the goods according to the special technical requirements for the customers and offer the most competitive prices and best services , supplying the “one step service” for construction of underground and sea station.
Tuesday, October 30, 2012
Integral Spiral Heavy Weight Drill Pipe
Integral Spiral Heavy Weight Drill Pipe
Integral spiral heavy weight drill pipe is to extend the central upset of heavy weight drill pipe and to cut spiral groove on heavy weight drill pipe.
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