Ningbo Lianyongxin Construction Hardware Co., Ltd. [China]

application scope : UPVC slide door

Material:steel ,brass,nylon

length:157mm

width:12mm

Factory will serve you wholeheartedly.

Be suitalbe for UPVC windows

Operates normally after 50000 times strict

Fine workmanship .Easy to install.

Reliability is our strong point..

Ball modulation window copper twin roller