1: Xaiv lub me me loj, me me loj los yog me me, koj siv tau lub sijhawm, tab sis ntev ntev, nws yuav xoob los yog xauv.
2: kev tiv thaiv kev sib txhuam. Khaws kev txhuam ntawm kev sib tw ntawm cov xov kom tsis txhob loosening, xws li caij nplooj ntoos hlav caij nplooj zeeg, ob chav ceev ceev, thiab lwm yam.
3: Mechanical locking. Kev siv qhov chaw nres tsheb los tiv thaiv kev sib txheeb ntawm qhov xov, xws li grooved ceev thiab cais pins.
4: Kev puas tsuaj ntawm qhov rooj xauv. Ua kom puas thiab hloov txoj kev sib raug zoo, xws li txoj kev cuam tshuam. !
5: Kev siv ncaj flange bolts, ceev
6: smear fastening agent, ntses kua nplaum, thiab lwm yam.