Kutakura mabhora esimbi vane maGrade akawanda.Zvinoenderana negwaro regiredhi muyero yenyika GB/T308-2002, vakakamurwa kuita G5, G10, G16, G28, G40, G60, G100, G200, G500, G1000, zvichingodaro. G ndiro vara rekutanga reGrade muChirungu. , uye nhamba dzinotevera dzine mazinga akasiyana.Iyo idiki iyo chiveve...
Verenga zvimwe