Hoʻohana ʻia ka hao maleable 90° kuʻekuʻe lima pololei e hoʻohui i ʻelua paipu ma ka pili wili, no laila e huli ka paipu i 90-degere no ka hoʻololi ʻana i ke kahe kahe wai. kūpono no ka pale ʻana i ka corrosion, pale a me ka maʻalahi o ke kau ʻana.Hana ʻia ka huahana me nā mea hao kila kiʻekiʻe, hiki ke hana i ka ikaika tensile ikaika ma hope o ka hoʻoluʻu ʻana, i loaʻa iā ia ke kūpaʻa maikaʻi loa.Eia kekahi, mālama ʻia ka ʻili me nā kaʻina fluorination ʻekolu, hiki ke hōʻemi i ka hopena erosion ma nā microorganism i nā kinoea, ka wai a me nā wai.Hana ʻia nā paipu kuʻe lima pololei 90 ° e like me nā kūlana kūloko like ʻole (e like me ANSI / ASME B16.3-2018, ASTM A197, DIN EN 10242, a me nā mea ʻē aʻe), a hoʻohana nui ʻia i ka ʻoihana, hale a me ka lako wai home, ʻōnaehana hoʻoluʻu a me ka hoʻoluʻu .Hiki ke hoʻokō koke ʻia ka hana pili ma waena o nā pahu paʻa e ka hana manual i ka wā o ka hoʻokomo ʻana.Eia kekahi, 300 Class American Standard Malleable Iron Pipe Fittings Malleable Iron 90 ° Straight Elbow e koi pono ana i ka ho'āʻo koʻikoʻi i nā mea maka a me ka hoʻopili ʻana a me ka ʻoki ʻana e like me nā kūlana ASTM A47 / 47M e hōʻoia i ka hana huahana.Eia kekahi, nānā ʻia a hoʻāʻo ʻia nā ʻāpana āpau e like me nā koi EN ISO 9001: 2015 e pale i ka palekana o ke ola lehulehu.