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.