Cov pob txha caj npab cog qoob loo yog tsim tawm ntawm sab hauv thiab sab nraud, lub plhaub thiab cov neeg taug kev, thiab yog tsim los ntawm kev siv lub nplaub tshev thiab loosening nrog hlau flange los yog sib koom tes. Cov khoom no tuaj yeem txo qhov kev hnov mob thiab suab nrov, thiab tuaj yeem ua rau kom thermal expansion thiab contraction tshwm sim los ntawm kev hloov kub, thiab dav siv ntau hauv cov tshuab raj.
Cim npe nrov: cog qoob loo cog qoob loo, Tuam Tshoj, lwm tus neeg, manufacturers, hoobkas, lag luam wholesale, kho, yuav, nqi qis, ua nyob rau hauv Suav teb
