luv luv piav qhia:

Masking daim kab xev muaj cov yam ntxwv ntawm qhov kub thiab txias tsis kam, zoo tiv thaiv cov kuab tshuaj lom neeg, siab adhesion, mos cov khaub ncaws thiab tsis muaj cov kua nplaum residual tom qab tearing.Nws yog tsim rau txhua yam kev lag luam kho kom zoo nkauj, electronics kev lag luam, kev lag luam, khau thiab lwm yam kev siv, nrog zoo npog thiab tiv thaiv.