Tianjin Rainbow Steel na-emepụta tube square nke bụ ụdị ígwè dị ogologo nke nwere oghere na-enweghị ihe mkpuchi gburugburu ya.akụkụ anọ tubeA na-emepụta ya site na mmịpụta nke tube na-enweghị ntụpọ site n'akụkụ anọ nke ihe mkpuchi ahụ. Tube square nwere akụkụ oghere ma a na-ejikarị ya eme ihe dị ka paịpụ maka ibuga mmiri mmiri. A na-ejikarị ya eme njem mmiri mmiri, nkwado hydraulic, nhazi igwe, nrụgide ọkara na ala, paịpụ boiler dị elu, paịpụ mgbanwe okpomọkụ, gas, mmanụ na ụlọ ọrụ ndị ọzọ. Ọ siri ike karịa ịgbado ọkụ ọ bụghị mgbawa. A na-emepụta tubes ígwè a na-akpọ ọkụ site na ịgafe mpempe akwụkwọ ígwè site na rollers iji nweta akụkụ anụ ahụ kpọmkwem. Ngwaahịa emechara nwere njedebe elu siri ike nwere nkuku radius, ma ọ bụ ihe owuwu a na-akpọ welded ma ọ bụ nke na-enweghị ntụpọ. Imepụta tube ígwè square a na-akpọ ọkụ gụnyere ịtụgharị ígwè ahụ na okpomọkụ karịrị ogo 1,000.