luv luv piav qhia:

Cov roj hmab ib sab daim kab xev yog ua los ntawm cov khoom sib xyaw ntawm polyhexene thiab fiber ntau raws li cov khoom siv hauv paus thiab coated nrog hluavtaws roj hmab. Nws muaj cov yam ntxwv ntawm kev sib npaug ntawm kev sib txhuam, kev sib txhuam thawj zaug, lub zog tensile, tsis muaj dej tsis zoo thiab cov ntaub ntawv pov thawj, tiv thaiv corrosion thiab tearing yooj yim, thiab lwm yam. Nws yog ib hom high-viscosity daim kab xev.