BJ45(H.W.Y)-25P、BJ45W-40P、 BJ45W-64P | 铬镍钛阀Cr.Ni.TI Steel | 铬镍钛阀+硬质合金Cr.Ni.TI Steel+Carbide Alloy | 聚四氟乙烯 Polytetrafluoroethylene |
BJ45(H.W.Y)-25R、BJ45W-40R、 BJ45W-64R | 铬镍钼钛阀Cr.Ni.Mo.TI Steel | 铬镍钼钛阀+硬质合金Cr.Ni.Mo.TI Steel+Carbide Alloy | 聚四氟乙烯 Polytetrafluoroethylene |