Buy Fire Door Three Tips

- Nov 04, 2016 -

First enrollment is check appearance, quality steel quality fire door welding firm, welding points distribution uniform; outside surface spray flat smooth; in provides of location due products logo, and quality test qualified logo and quality certification (recognized) qualified logo, and qualified of wood quality fire door appearance should full, no damaged, surface net light, no planing marks, and Burr and hammer printing; cut angle, and spell sewing should tight flat; in provides of location due products logo, and quality test qualified logo and quality certification (recognized) qualified logo.

Second enrollment is on digital, qualified products of shape size should is less than is equal to samples description in the of shape size, doors thickness should is greater than is equal to samples description in the of doors thickness, frames side wall width should is greater than is equal to samples description in the of frames side wall width, fire glass shape size should is less than is equal to samples description in the of fire glass shape size, fire glass thickness should is greater than is equal to samples description in the of fire glass thickness.

Third trick is to see seals, qualified steel and wooden fire door set fire seal, the sealing strip should be straight, not arched, and qualified inspection reports issued by national testing agency.


Previous:Building Energy-saving Insulation From Concern Start Next:Inorganic Super Fire Shutter Occupy Market Leading