Double 36 Spring And Chain Operating Roller Blinds System

Detailed Product Description
Features:
1) One piece of operating chain to control two blinds
2) Oil Brake system makes the roller blind work smoothly and quietly
3) Limit switch system: to adjust the upper limit of the blind from outside by screwdriver even without breaking down the blind.
4) To adjust the rolling speed / spring of the blind from outside also by screwdriver
even without breaking down the blind

Operations:
1) Chain in front of the blinds to control the lower one, chain in back of the blinds
to control the upper one
2) To roll down the blind
a) Draw the chain downwards
b) Pull the lower tube downwards
3) To roll up the blind
a) Draw the chain downwards to be about 3cm and then leave it, the blind will
go up to the top or the upper limit of the blind
b) Pull the lower tube downwards to be about 3cm and then leave it, the blind
will go up to the top or the upper limit of the blind
4) Stop at any position when rolling up the blind: Draw the chain or pull thelower
tube downwards to be about 3cm

Packing:
15 sets/ctn