b.to be used in air-conditioner and ventilation pipe, the wind volume can be control through adjusting the angle of the vanes;
c. fixing methods: manual bisect (single) damper can be fixed in square or rectangular section outtake, and control the wind volume by operating the four connecting- rod to move the angle of multi-layer vanes, which can enhance the adjust efficiency.
Packaging & Shipping
We can specially produce the new products based on your drawings or designs to meet your actual needs.
All the demensions and colours are up to your choice.
We will keep you noted of each steps during the production process.
Strict Quality Control in the every step and make sure 100% high quality before the packing and shipment.
We will provide all the documents based on your needs after shipment.
Please feel free to contact us when you find any problem about our products.
We promise we will help to solve any problems of our products and we manage to do our best to provide the best services to all the buyers.
We cherish all the chances to work with the buyers all over the world!