Fastener yog ib hom khoom siv dav siv los siv rau kev sib txuas ceev.Fasteners, kev lag luam dav siv, suav nrog lub zog, hluav taws xob, khoom siv hluav taws xob, tshuab, tshuaj lom neeg kev lag luam, metallurgy, pwm, hydraulic, thiab lwm yam, nyob rau hauv txhua yam ntawm machinery, khoom siv, tsheb, nkoj, rai ...
Nyeem ntxiv