ERW carbon steel pipe vs spiral pipe: Nke mbụ, ọdịiche dị n'etiti usoro mmepụta ERW carbon steel bụ eriri igwe na-ekpo ọkụ na-ekpo ọkụ site na mpịakọta na-aga n'ihu na-akpụ, ojiji nke mmetụta akpụkpọ anụ dị elu na nso nso, nke mere na nsọtụ nke eriri igwe okpomọkụ fusion, nrụgide na t ...
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