Pacific Valves' unique injector has a double ball check protection against leakage and a positive shut-off internal valve.
Pacific Valves' unique injector has a double ball check protection against leakage and a positive shut-off internal valve.
美国太平洋阀门独特的注入器具有双球止回保护，防止泄露，并保护阀门内部活动部件。