We want to buy the following welded steel pipes:1. WELDED STEEL PIPE for water network systemSpecification:- DN 1200mm (thickness: 11mm、 length: 9m): 700m- Internal protection: cement motar lining (Thickness: 25-30um) - External protection: bitument coating (Thickness: 7um)2. Steel Fittings- Bends 90 degree DN1200: 4 pcsNote: country of origin: ChinaPls give us your best offer (USD C&F Hochiminh Port、 Vietnam) and delivery time for the quantity above.Pls contact me if you need any further information.Thanks And regards、Hung