... 4.Standards: ASTM, DIN, EN, BS, JIS, ISO5.Materials: Zink Aluminum Alloy,Tinplate,Galvanized Sheet and Color-coated Plate 6.Payment term ... prefer:30% advance deposit,the balance TT by copy of B/L.Letter of credit is also ok. 7.Delivery time:Within ... : Bulk, box, bag, or according to customers' requests. circular Zinc Aluminum Alloy gasket