一.He aha ka manaʻo o ka seamless kila paipu E pili ana i ole weld ma luna o ke kila paipu, i loko o ka hana ana o ka billet pololei olokaa, no ka mea, o ka seamless pilina, i ka maikaʻi maikaʻi o ke kiʻekiʻe puʻe kū'ē, pinepine hoʻohana e like me boiler paipu. , paipu halihali, paipu, barela, he r wela kona...
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