Osisi ọkụ
Ihe omumu ihe omumu nke Tianxiang bụ ihe omumu ihe kacha ewu ewu. O nwere akụrụngwa akpaaka zuru ezu ma na-ejikwa ngwa mgbakwunye Robot. Ọ nwere ike mezue ọtụtụ okporo osisi emechaala n'otu ụbọchị. Banyere ihe nke ogwe ọkụ ahụ, ị nwere ike ịhọrọ steel, aluminom ma ọ bụ ndị ọzọ. A na-atụ aro ka ịhọrọ igwe anaghị agba nchara, nke siri ike na corrosion - na-eguzogide-eguzogide na-eguzogide ya, ọ ga-adabara ya kpamkpam. Ọ bụrụ na ịchọrọ mkpanaka galvanized, biko kpọtụrụ anyị.
