ʻO ke kila kila welded paipu, i kapa ʻia ʻo welded pipe, ua ʻike ʻia e ka precision kiʻekiʻe, ka mānoanoa o ka paia o ka paia, ka ʻōlinolino kiʻekiʻe i loko a i waho o ka paipu, a hiki ke hoʻoholo ʻia.Hiki ke hoʻokaʻawale ʻia ka ʻenehana welding i ka welding a me ka welding manual.Hoʻohana nui ʻia ʻo GB / T12770-2002 no nā mīkini, nā kaʻa, nā kaʻa, nā lako, nā mea hoʻonani o nā hōkele a me nā hale ʻaina a me nā ʻāpana mechanical ʻē aʻe.GB / T12771-2008, hoʻohana nui ʻia no ka lawe ʻana i ka haʻahaʻa haʻahaʻa corrosive medium.Ma ka nui a me ka nui o nā pā, ua pani ʻia nā paipu kila ʻole e nā paipu, nā paipu hoʻonaninani, nā paipu wai wai a me ka haʻahaʻa, a me nā mea ʻē aʻe, ʻoi aku no nā lako hoʻololi wela.