UL steel fireproof qhov rooj yog qhov zoo tshaj plaws hauv kev ua haujlwm thiab siv cov ntaub ntawv zoo, yog li txhim kho kev ruaj ntseg thiab kev tshawb fawb hauv cov txheej txheem siv. UL steel fireproof qhov rooj muaj lub neej ua haujlwm ntev thiab ua tau raws li qhov yuav tsum tau ua kom ntev ntev hauv cov txheej txheem siv tiag tiag.

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.