EH-500/500H Stainless Hlau Flexible Joint siv rau lub twj tso kua mis txuas nrog lub raj, nqus kev co thiab txo lub suab nrov. Muaj ob hom. Ib qho yog hom welded, lwm yam yog hom tsis-welded. Rau hom uas tsis yog-welded, kua hu rau saum npoo yog molded nrog bellows yam tsis muaj vuam. Tshem tawm cov corrsion ntawm cov khoom siv welded.