Lub thickness ntawm UL steel fireproof qhov rooj nplooj yog muab faib ua peb tus qauv, namely, A, B thiab C, nrog zoo heev suab rwb thaiv tsev thiab kub rwb thaiv tsev kev ua tau zoo. Qhov saum npoo ntawm UL steel fireproof qhov rooj yog kho los ntawm electrostatic txau, thiab cov khoom tsis zoo xws li pob khawm, qhov rooj xauv, qhov rooj kaw yog cov khoom zoo. Qhov hloov yog lub teeb thiab ruaj khov.

ZHTdoors hluav taws qhov rooj, 31 xyoo ntawm kev tsim khoom hauv qhov rooj hluav taws thiab qhov rais. Lub ntsiab UL qhov rooj hluav taws, EN qhov rooj hluav taws, BS EN qhov rooj hluav taws, thiab lwm yam.,.Peb muaj ntawv pov thawj.ZHTdoors txhawb OEM thiab tsim dawb.Our zoo: zoo zoo, Hoobkas nqi, kev pabcuam zoo.Zoo siab txais tos los tham nrog peb.