Check accessories:the selection of hardware, steel lining, tops and other accessories is the key to making high-quality supreme upvc windows.

When plastic-steel doors and windows are equipped with insulating glass, the weight per square meter may exceed 40 kg, so the requirements for various accessories are very high.

The quality of accessories from different manufacturers vary greatly, and the prices vary several times. Inferior parts can be damaged when used for a short time, causing the window sash to sag, push and pull, loose switches, poor sealing, and even leave safety hazards.