Air inlet
Raw matrial plastic covered body;
With birds or mice protect net;
High strenght Nylon pulley ensure theair inlet can be opend or closed smoothly;
Stainless steel spring for lang time usage
Light trap
1.The specification above are conventional, customized designs are acceptable.
2. Light trap sheets are made of high quality plastic, reasonalbe double-waveshapre make sure the shading performance, meanwhile reduce the air resistance.
3. Sheets are spread out in one unit, easily to be disassembled and cleaned.
