ʻO kā mākou huahana nui he mau paipu kila wili pololei kiʻekiʻe a me ʻelua ʻaoʻao submerged arc welded steel pipe, a me nā mea ʻē aʻe, i hoʻohana nui ʻia i nā pipeline hoʻoili wai liʻiliʻi e like me ka aila, ke kinoea maoli, ka wai, ka mahu, ke kinoea. etc., a me nā paipu kila structural no pil...
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