A. The Installation of Swell Type Hook
The installation, disassemble and cleaning by the users themselevs can be realized, the only tool is a screwdriver. The assemble and....

A.It is suitable for casement door and push-pull door as well as any kinds of casement window and push-pull window.
B. The wind screen is folded type, using it only needs one hand....

1.There is a front face adjustive device or an easily disassemble and assemble device on the right side of the yarn box.
2.Inner adellimorphic bead type windproof device, can....

It is suitable for any type of casement windows as well as push  ¨ Cand pull windows.
Important advantages :
1.There is an adjuctive device in the front of yarn box: Because there....