Five tips for buying a good fire door:
One is to check the appearance, good steel \ fire door welding firm, welding spot distribution uniform; The outer surface is sprayed flat and smooth; There shall be product marks, quality inspection marks and quality certification (approval) marks at the specified locations. The appearance of qualified wooden fire doors should be complete, without damage, clean surface, no scratches, burrs and hammer marks; Cutting Angle, seam should be tight and level off.
Is two strokes for Numbers, the dimensions of qualified products shall be less than or equal to the sample description of appearance size, door leaf thickness of door leaf thickness should be greater than or equal to the sample description, doorframe wall width should be greater than or equal to the sample description in the doorframe wall width, flameproof glass shape size should be less than or equal to the sample description of flameproof glass shape size, fire glass thickness should be greater than or equal to the sample description of flameproof glass thickness.
3 strokes are to see seal, qualified steel, woodiness fire door should set fire seal strip, this seal strip should be straight, do not have arch, have the qualified test report that inspects an orgnization to issue.
Four recruit is to evaluate weight, the fire door with qualified quality is heavier commonly, and those very light fire door is the product with inferior quality affirmation.
The five steps are to check the certificate, and the fire door is a product included in the type approval system. The product needs type inspection before sales. The general type inspection report describes in detail the sample size, composition, material and product photos, etc. In the actual purchase, the manufacturer shall ask for the type inspection report.
