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api 5l gr.2 gr.3 dsaw steel pipe line pipe welded steel pipe

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Ministry of Commerce of the P.R.China - China Commodity Net

Drill pipes are steel tubes with threaded ends that are used to connect a drill rigs surface equipment with its drilling equipment, or bottomhole assembly, at the bottom of a well. DSAW STEEL PIPE. H.S CODE73051100 ModelExport areaIntroduction Spiral Submerged Arc Welded Quality StandardAPI 5L, ASTM A53, ASTM A252, EN 10220

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