Pumi haʻahaʻa a waenapaipu pailahoʻohana i ka ingot kila a i ʻole ka paipu paʻa i ka capillary perforated, a laila kelepona i hana ʻia e ka mea wela, ʻōwili ʻia a i ʻole anu.
Wahi a nā helu helu piha ʻole, ʻoi aku ka nui o ka 240 o nā ʻoihana hana paipu ʻole o Kina ma mua o kahi hui paipu kila ʻole ma kahi o 250 mau pūʻulu o ka mana hana ma kahi o 450 miliona mau tona.ʻIke ʻia mai ka caliber <φ76, helu no 35% <φ159-650, helu no 25%.Mai nā kumu like ʻole o ka 1.9 miliona tons, helu ʻia no 54%;paipu aila 760,000 tona, he 5.7%;hydraulic prop, precision tube 15 miliona tons, helu no 4.3%;kuhiliʻole kila paipu, paipu bearings, automotive paipu no ka huina o 50 000 tons, helu no 1.4%.

Haʻahaʻa haʻahaʻa a me waena puʻe paila paipu hoʻokō Kūlana: GB3087-1999 haʻahaʻa a me waena puʻe paila seamless kila paipu.

Hoʻohana ʻia ka paipu paila haʻahaʻa haʻahaʻa a me ka haʻahaʻa e hana i nā ʻano hana like ʻole me ka paila haʻahaʻa haʻahaʻa haʻahaʻa wela nui a me ka locomotive boiler paipu mahu wela wela, paipu opium, paipu liʻiliʻi a me nā hana pōhaku pōhaku kiʻekiʻe o ke kila kila wela a me ka huki anu. (rolled) seamless tube.Hoʻohana nui ʻia i nā paila ʻoihana a me ka boiler i ka lawe ʻana i ka wai haʻahaʻa haʻahaʻa i ka pipeline.ʻO ka ʻelele o nā mea 10, 20 kila.