产品名称：意美达上下挂钩（经典升级款）

成熟实用典范 北京意美达纱窗　　

此款是国内销售量最大的一款经典纱窗，外表美观，且结实耐用。

this range of product is one of the largest volumes sold in China.it is s pecious and durable.

纱盒右侧有弹簧调节器，可正面调节弹簧力度大小。

There is an front spring-readjust system to adjust to adjust the spring.

隐置于风槽内侧的防风珠在大风来临时确保纱网不会被吹出风槽外。

The bead is in the inside of the window slot,which can avoid blowing thenetting out by strong wind.

采用一流的玻璃纤维纱网，防紫外线，采光透气。

High-class fiberglass screen is very strong.Daylighting and ventilate.

铝合金整体挂钩开启装置简单结实。

Aluminum alloy whole hook device is simple and strong.