Xov xwm

Daim ntawv thov ntawm silica hauv silicone roj hmab Vim tias nws muaj zog adhesion, hnav tsis kam thiab kub laus tiv thaiv, silica tseem tuaj yeem hloov ib feem ntawm cov roj carbon dub hauv cov kh...

Txoj kev loj hlob ntawm silica kev lag luam (1) Cov nplai ntawm kev lag luam txuas ntxiv nthuav dav Raws li kev ua lag luam xav tau ntawm silica, kev lag luam roj hmab yog kev lag luam tseem ceeb n...