A: cam khwb cia hlau yeeb nkab tiv thaiv kev sib kis ntawm hluav taws zoo dua li cov yeeb nkab yas vim tias cam khwb cia hlau tsis tuaj yeem tawg.Nws yuav tsis txhawb nqa hluav taws lossis hlawv, tawm hauv lub qhov uas cov pa taws thiab nplaim taws tuaj yeem ua rau hauv lub tsev.Ntawm qhov tod tes, combustible yeeb nkab xws li PVC thiab ABS, tuaj yeem bu ...
Nyeem ntxiv