1.Abt leaded glass: Lead glass is a silica type, of high quality optical grade with over 60 percent heavy metal oxide. Zf2 and zf3 lead glass is mainly used in x-ray room and ct scanning room. Zf6 and zf7 lead glass is mainly used in nuclear industry such as nuclear power station and atomic energy application. 2.Terms: Payment terms:t/t;western union. Shipment terms:fob qingdao, tianjin, shanghai. Delivery time:1-15days to your orders. Packing details:first packed with foams then wooden case 1.With foams 2.With wooden case