Kev lag luam mining xws li mining & metallurgy (kev pab cuam + smelting) muaj cov kev xav tau siab rau li qub nyob rau hauv cov xwm txheej hnyav hauv cov txheej txheem ntxhia thiab smelting.Qhov nruab nrab feem ntau muaj cov yam ntxwv ntawm cov khoom loj, siab hardness, siab viscosity, muaj zog acid thiab alkali, thiab lwm yam. Lub valve yuav tsum hnav-resistant, corrosion resistant, thiab zoo heev nyob rau hauv kev ua tau zoo thaum xaiv lub valve.HIVAL® muaj xws li riam rooj vag li qub, hlau zaum pob li qub, ob / triple off-set npauj npaim li qub, uas feem ntau yog ua los ntawm cam khwb cia hlau, carbon hlau, stainless hlau, thiab lwm yam.