Umbhobho wentsimbi ongenamthungo
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I-JIS G3454 STPG 370 Imibhobho yeNtsimbi yeKhabhoni yeNkonzo yoxinzelelo-iQela leNsimbi le-Womic
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I-ASTM A335 P91 Uhlobo lwe-2 iityhubhu / P5 / P9 / P11 / P12 / P22
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I-SA213 T22 Imibhobho yentsimbi yentsimbi engenamthungo / imibhobho
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Umbhobho weNtsimbi oSlotyolweyo wePasaji eLawulwayo lolwelo
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I-Oil Well Casing Steel Pipe API 5CT L80 BTC R3
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API 5CT N80 R3 Casing Steel Pipe for Oyile Well
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I-ASTM A106 GR.B Umbhobho wentsimbi ongenamthungo wamanzi
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I-API 5L ye-Seamless Steel Pipeline yegesi yeoli
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API 5L ASTM A106 A333 okanye A335 Umthungo wemibhobho yentsimbi yeCarbon