Nyob rau hauv cov kua dej conveying system, lub valve yog ib tug indispensable tswj tivthaiv, uas yog feem ntau muaj lub luag hauj lwm ntawm kev tswj, kev sib hloov, los tiv thaiv rov qab, txiav tawm, thiab shunt. Lub valve yog dav siv nyob rau hauv industrial thiab civil teb. Qhov kub thiab txias valve yog ib hom siv dav hauv li qub. Nws specification...
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