Hejian Longyue Drill Bit Manufacture co.,ltd is located in Hejian city,Hebei province,China.The geographical position is superior and convenient transportation for adjacent to 106 national road.Longyue company is oil sup........
Hejian Longyue Drill Bit Manufacture co.,ltd is located in Hejian city,Hebei province,China.The geographical position is superior and convenient transportation for adjacent to 106 national road.Longyue company is oil sup........
Our company DONGYING LAKE PETROLEUM TECH. CO. LTD. is engaged in the production and export activities in China, is exporting the product groups listed below.
We are among the major supplier companies in China and lead........
Our company DONGYING LAKE PETROLEUM TECH. CO. LTD. is engaged in the production and export activities in China, is exporting the product groups listed below.
We are among the major supplier companies in China and lead........
We are professional drill pipe factory with ISO, API, GOST ceritificate to produce API 5DP oil drill pipe, drill collar, water well drill pipe, geographincal drill pipe, tool joints, etc....
We are professional drill pipe factory with ISO, API, GOST ceritificate to produce API 5DP oil drill pipe, drill collar, water well drill pipe, geographincal drill pipe, tool joints, etc....
We are a leading manufacturer established in 1996 of API oli drill pipe, coalbed gas drill pipe, shale gas drill pipe, geothermal well, water well drill pipe and drill collar/kelly, heavy weight drill pipe and other rela........
We are a leading manufacturer established in 1996 of API oli drill pipe, coalbed gas drill pipe, shale gas drill pipe, geothermal well, water well drill pipe and drill collar/kelly, heavy weight drill pipe and other rela........
We are engaged in manufacturing drill pipes with decades experiences. Our main product--friction welding drill pipe, had been widely used in oilfield well, water well drilling and geological drilling and so on....
We are engaged in manufacturing drill pipes with decades experiences. Our main product--friction welding drill pipe, had been widely used in oilfield well, water well drilling and geological drilling and so on....
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