Quality standard of plastic steel window

1. The variety, type, specification, size, opening direction, installation position, connection mode and filling and sealing treatment of doors and windows shall meet the design requirements, and the wall thickness and setting of lined reinforced steel shall meet the quality requirements of the current national product standards.
2. Door and window frames and leaves must be firmly installed. The number and position of fixing plates and expansion bolts shall be correct, and the connection method shall meet the design requirements. The fixed point shall be 150 ~ 200mm away from the window corner, middle transom and middle mullion, and the distance between the fixed points shall not be more than 600mm.
3. The window sash shall be opened flexibly and closed tightly without tilting. The sliding window sash must be provided with anti falling measures.
4. The model, specification and quantity of accessories shall meet the design requirements, the installation shall be firm, the position shall be correct, and the function shall meet the use requirements.
5. The gaps between doors and windows and walls shall be filled with closed hole elastic materials, and the surface shall be sealed with sealant. The sealant shall be firmly bonded and the surface shall be smooth and straight without cracks.
6. The switching force of the window sash shall meet the following requirements: the switching force of the sliding window sash shall not be greater than 100N.
7. The joint between the glass sealing strip and the glass and the glass notch shall be flat, without curling and falling off.

Good quality can withstand quality inspection. Ly plastic steel window frame has passed many quality process inspection standards. More than 20 years of production experience makes ly brand have an important position in China’s plastic steel profile market. Choosing ly means choosing high-quality quality and reputation.