ທໍ່ເຫຼັກ seamless
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ASTM A335 P91 ປະເພດ 2 ທໍ່ / P5 / P9 / P11 / P12 / P22
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A213 T22 Seamless Alloy Steel Tubes / ທໍ່
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ທໍ່ເຫລໍກສະລັອດຕິງສໍາລັບການຖ່າຍທອດນ້ໍາຄວບຄຸມ
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Oil Well Casing Steel Pipe API 5CT L80 BTC R3
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API 5CT N80 R3 Casing Steel Pipe for Oil Well
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ASTM A106 GR.B Seamless Steel Pipe ສໍາລັບນ້ໍາ
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API 5L Seamless Steel Pipeline ສໍາລັບອາຍແກັສນ້ໍາມັນ
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API 5L ASTM A106 A333 ຫຼື A335 Seamless Carbon Steel Pipes
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API 5CT, J55, K55, L80, N80 Steel Casing & tubing