Flange manufacturer / supplier in China, offering High-Strength Carbon Steel Plate Flange DIN En10222-2 P245gh P250gh P280gh P305gh En1092-1 Type 21/32/34/35 for Storage Tanks Pumps Valves and Pipeline Systems, High-Strength Carbon Steel Plate Flange DIN En10222-2 P245gh P250gh P280gh P305gh En1092-1 Type 11/12/13 for Storage Tanks Pumps Valves and Pipeline Systems, High-Strength Carbon Steel Plate Flange DIN En10222-2 P245gh P250gh P280gh P305gh En1092-1 Type 01/02/04/05 for Storage Tanks Pumps Valves and Pipeline Systems and so on.