All GH doors and frames have been fire tested in accordance with UL 10B, UL 10C, NFPA252, and ASTM E-2074 and are all produced under FM Approval and Warnock Hersey/ITS factory inspection and labeling service program.
So if you want to know more about our company informations and our new product,pls visit our website:
http://www.ghdwi.com; http://www.ghdoorframe.com.
You will find more interested and we hope to coorperate with you.