Our enterprise insists all along the standard policy of "product high-quality is base of business survival; client satisfaction could be the staring point and ending of an business; persistent improvement is eternal pursuit of staff" as well as consistent purpose of "reputation first, client first" for Helix Ventilation Tube, Antistatic Ventialtion Pipe, Spiral Duct, Water Storage Tank,Vent Pipe Fittings. We are very proud of the good reputation from our customers for our products' reliable quality. The product will supply to all over the world, such as Europe, America, Australia,Bogota, San Diego,Slovakia, Bangladesh.We have customers from more than 20 countries and our reputation has been recognized by our esteemed customers. Never-ending improvement and striving for 0% deficiency are our two main quality policies. Should you need anything, don't hesitate to contact us.