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Dongou Industrial Zone, Oubei, Wenzhou, Zhejiang, China
| No. | File Name | Download Link |
| 1 | OIL FIELD CARBON STEEL CHECK VALVE | Download |
| 2 | 2 PIECE FORGED STEEL BALL VALVE 5000PSI | Download |
| 3 | 2 PIECE STAINLESS STEEL BALL VALVE 3000PSI | Download |
| 4 | 2 PIECE STAINLESS STEEL BALL VALVE 2000PSI | Download |
| 5 | OIL FIELD CARBON STEEL BALL VALVE RP | Download |
| 6 | OIL FIELD STAINLESS STEEL CHECK VALVE | Download |
| 7 | 2 PIECE STAINLESS STEEL BALL VALVE 6000PSI | Download |
| 8 | 2 PIECE OIL FIELD BALL VALVE 5000PSI | Download |
| 9 | 2 PIECE CARBON STEEL BALL VALVE 3000PSI | Download |
| 10 | 2 PIECE CARBON STEEL BALL VALVE 2000PSI | Download |
| 11 | OIL FIELD CARBON STEEL BALL VALVE FP | Download |
| 12 | OIL FIELD DUCTILE IRON CHECK VALVE | Download |
| 13 | 2 PIECE FORGED STEEL BALL VALVE 3000PSI | Download |
| 14 | 2 PIECE FORGED STEEL BALL VALVE 2000PSI | Download |
| 15 | OIL FIELD DUCTILE IRON STEEL BALL VALVE RP | Download |
| 16 | OIL FIELD BALL TYPE CHECK VALVE | Download |
| 17 | 2 PIECE OIL FIELD BALL VALVE 3000PSI | Download |
| 18 | 2 PIECE FORGED STEEL BALL VALVE BOLTED 2000PSI | Download |
| 19 | OIL FIELD DUCTILE IRON STEEL BALL VALVE FP | Download |
| 20 | DUCTILE IRON GROOVED END CHECK VALVE | Download |
| 21 | 2 PIECE DUCTILE IRON BALL VALVE 2000PSI | Download |
| 22 | OIL FIELD CARBON STEEL BALL VALVE BOLTED | Download |
| 23 | GROOVED END OIL FIELD CHECK VALVE | Download |
| 24 | 2 PIECE HEXAGON BALL VALVE 2000PSI | Download |
| 25 | OIL FIELD DUCTILE IRON BALL VALVE BOLTED | Download |
| 26 | 1 PIECE HEXAGON BALL VALVE 2000PSI | Download |
| 27 | OIL FIELD STAINLESS STEEL BALL VALVE FP | Download |
| 28 | 1 PIECE HEXAGON SS BALL VALVE 2000PSI | Download |
| 29 | OIL FIELD BALL VALVE GROOVED END | Download |
| 30 | 2 PIECE CARBON STEEL BALL VALVE 6000PSI | Download |
KOSEN is a dynamic & leading valve manufacturer delivering innovative solutions to customers in engineering industries. Our primary goal is to provide a unique solution for the services of Oil, Gas, Nuclear, Refinery, Chemical, Marine, Potable Water, Waste Water, Sewage, Power Station and Pipeline Industries.