Zida zazikulu zolumikizirana ndi mphira ndi: silika gel, mphira wa nitrile, neoprene, mphira wa EPDM, mphira wachilengedwe, mphira wa fluoro ndi mphira wina.Thupi katundu yodziwika ndi kukana mafuta, asidi, alkali, abrasion, mkulu ndi otsika kutentha.1. Zachilengedwe ...
Werengani zambiri