ʻO Tianjin Rainbow Steel Group ʻO ka mea hana a me ka mea kūʻai aku ma Kina, He mea kūikawā mākou i ka hana ʻana i nā paipu kila welded kiʻekiʻe, nā paipu kila galvanized, nā paipu kila ERW, Ke kila ʻāwili wela, GCOE square / rectangular steel pipe.ʻO kā mākou mea hana hana me nā laina huahana paipu kila 5, hiki iā mākou ke hoʻolako i 350 tausani tons i kēlā me kēia makahiki.Hoʻopaʻa mākou i ka mīkini hou loa, nā mākau hana kiʻekiʻe loa, a me kahi ʻōnaehana hoʻokele maikaʻi loa me kahi hoʻonohonoho piha o nā mea hana hou no ka hoʻāʻo ʻana a me ka nānā ʻana mai ka hoʻokuʻu ʻana i nā mea maka a hiki i ka lawe ukana.Loaʻa iā mākou ka palapala hōʻoia o BV a me ISO9001: 2000.Hiki i kā mākou huahana ke hoʻokō i nā kūlana ASTM DIN JIS GB BS. Hoʻopili ʻia kā mākou huahana i ka Petroleum, ka mana, ke kinoea metallurgy, ka hana pepa, ka kemika, nā mea lapaʻau, ka mokulele, ka wela o ka paila, ka hoʻololi, ka hana moku, kūkulu, etc. honua, e like me Kelemānia, Italia, ʻAmelika ʻAmelika, ʻAmelika Hema, ʻAsia Hikina Hema, Iapana, HongKong a me Taiwan. ʻO kā mākou pahuhopu ka mea kiʻekiʻe loa, ke kumukūʻai hoʻokūkū, a me ka lawelawe maikaʻi loa e hōʻoluʻolu i kā mākou mea kūʻai aku, e hoʻomau mākou i ka hana ʻana a me ka hana hou, kūkulu i kahi ʻO ka hilinaʻi maikaʻi loa a me ka ʻoihana kiʻekiʻe loa ma ka honua. Hoʻokipa mākou i nā mea kūʻai mai a puni ka honua e hui pū me mākou, hoʻomohala a pōmaikaʻi iā mākou ʻelua!