阀体：铸铁、铸钢、不锈钢 密封：橡胶

阀体：铸铁、铸钢 密封：橡胶

阀体：铸铁、铸钢 密封：橡胶

阀体：铸钢、不锈钢 密封：不锈钢

阀体：铸钢、不锈钢 密封：不锈钢

阀体：铸钢、不锈钢 密封：不锈钢

阀体：铸钢、不锈钢 密封：聚四**乙烯、增强聚四**乙烯

阀体：铸铁、铸钢 密封：橡胶

阀体：铸铁、铸钢 密封：橡胶

阀体：铸钢、不锈钢 密封：橡胶