hpl board tseem hu ua refractory board, lub npe scientific yog thermosetting resin impregnated ntawv siab siab laminated board, yog lub nto kho kom zoo nkauj ntawm refractory tsev ntaub ntawv, hpl board yog lub hauv paus ntawv los ntawm melamine thiab phenolic resin impregnation txheej txheem, los ntawm siab t. .
Nyeem ntxiv