Qhov khoob yog forged integrally.Tom qab roughing machining, nws yog quenched thiab tempered.Tom qab quenching thiab tempering, nws yog refined.Tom qab ntawd, tag nrho cov hoop tau muab faib ua peb lossis plaub daim ntawm hoop.Nws yog ib qho yooj yim mus use.Nws tuaj yeem muab cov hoop rau CPM, Zhengchang, Buller, Shende thiab lwm yam pelletizers, thiab tuaj yeem ua tiav raws li cov duab kos.