Hangzhou Portia Trading Co., Ltd. is an experienced manufacturer and exporter of the rain drainage systems. Presently, we have PVC 5.2 inch and 7 inch series, and we&＃039;re ready to develop new series in future as to serve our customers better. Though the drainage system is only a functional matter, we never take it for granted. We regard it as a decorative mate of the house. That&＃039;s why you&＃039;ll see our products ideally made and ready for a house as an integrated part. With our expertise in product development and technical support, years of experiences in international trade and our close location to (Ningbo) port, we believe we&＃039;ll be your good business partner, in name of product, service and delivery. Please feel free to contact us if you have any enquiries. We welcome friends and partners all over the world.