http://www.pscomposite.com/com....posite-cover/Composi Cover factory 350mm D400 gas station manhole covers In China , PetroChina, SINOPEC and other fueling station are our loyal clients for many years. In abroad, UK, USA, Australia , Kenya , Uganda, Singapore, Malaysia and other countries are using our frp manhole covers always. Product Details: 900mm (13.7鈥? Dia Composite manhole cover MC composite cover have the characteristics of safety, corrosion resistance and easy installation. Specially produced for gas stations, with guaranteed quality! Product information NameHeavy Duty Fuel Station Covers Material:Composit(SMC) Size:Clear op