IShedyuli ye-40 ye-carbon steel pipes ihlelwe ngokusekelwe kwindibaniselwano yezinto ezibandakanya umlinganiselo we-diameter-to-wall thickness, amandla ezinto eziphathekayo, i-diameter yangaphandle, ubukhulu bodonga, kunye nomthamo woxinzelelo. Ukutyunjwa kweshedyuli, njengoShedyuli 40, kubonisa i...
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