Type: Solar Water Heater Parts Brand Name: Jiushun Model Number: 20 ... , odorless, non-corrosive ,antioxidative3,Each product have good quality and a long service life. Product attributesNamesilica gel circleFull specifications20,25,32 ... ,47,58,70mmProduct size20mmFlanging Height12mmPackage sizeAccording to the product specification make to order the cartonsPackaging1000pcs/ctnWhether to send ...