Qauv TSIS MUAJ: XBD-3263
Txhim khu kev qha thiab muaj zog xa mus los ntawm kev siv cov txhuam hniav ua los ntawm graphite.
Txo qhov hnav thiab tsim kua muag vim yog cov graphite txhuam 'cov kav ntev thiab ua haujlwm rau kev sib txhuam.
Tsawg qhov kev pheej hmoo ntawm qhov hluav taws xob thiab lwm yam teeb meem hluav taws xob, ua kom muaj kev nyab xeeb dua.