ʻOi aku ka nui o ke anawaena o waho o ka paipu wela ʻole ma mua o 32mm, a ʻo ka mānoanoa o ka pā he 2.5-200mm. ʻO ke anawaena o waho o ka paipu kila liʻiliʻi i ʻōwili ʻia e hiki ke hiki i 6mm, a hiki i ka mānoanoa o ka paia ke hiki i 0.25mm. Hiki ke hiki i ka 5mm ke anawaena o waho o ka paipu paia lahilahi a emi iho ka manoanoa o ka paia ma mua o 0.25mm.

Hoʻohana ʻia ka paipu kila maʻamau i hana ʻia me 10, 20, 30, 35, 45 a me nā mea kila kiʻekiʻe kiʻekiʻe ʻē aʻe 16Mn, 5MnV a me nā mea hao haʻahaʻa haʻahaʻa haʻahaʻa a i ʻole 40Cr, 30CrMnSi, 45Mn2, 40MnB a me nā kila i hoʻopaʻa ʻia ʻē aʻe. rolled.10, 20 a me nā mea haʻahaʻa kalapona kila manufacturing seamless paipu ua nui hoʻohana 'ia no ka wai pipeline.45, 40Cr a me kekahi medium kalapona kila i hanaia i ka seamless paipu e hana mechanical 'āpana, e like me kaʻa, tractors stressed parts.The general use of seamless ʻO ka paipu kila e hōʻoia i ka ikaika a me ka ho'āʻo hoʻopalapala.