Specifications

1.Made of high quality APS engineering plastic;
2.Close tightly ,open flexibly, with nets
3. Air guide plate or light trap

 

The leading and the biggest  manufacturer of plastic products for poultry house in China:

 

 

  1.Air inlet:added the anti-ultraviolet and anti-ageing material, the quality is guaranteed and the life is prolonged.

 

 

 2. Protection net: Reasonable structure, made of high quality polypropylene.

 

 

3. Nylon pulley: Designed by patent organization, it is of rolling friction when 

 

turning on or off, low resistance and easy opening and closing.

 

 

4. Spring: High quality stainless steel spring, durable and rustless

 

5. Pulley Accessories: Rigidity hard drawn wire round steel, ensuring accurately opening. 

 

Rigidly connected will not be stretched, the surface is treated by galvanization in case of rust.