后阀门 meaning in Chinese

late gate

Plastics piping systems . thermoplastics valves . test method for the integrity of a valve after an external blow
塑料管道系统.热塑性塑料阀门.外部冲击后阀门完好性的试验方法
Plastics piping systems - thermoplastics valves - test method for the integrity of a valve after an external blow
塑料管道系统.热塑性阀门.经过外部冲击后阀门的完整性试验方法
Plastics piping systems - thermoplastics valves - test method for the integrity of a valve after an external blow ; german version en 1705 : 1996
塑料管道系统.热塑阀门.外部冲击后阀门完好性试验方
Plastics piping systems - thermoplastics valves - test method for the integrity of a valve after temperature cycling under bending
塑料管道系统.热塑料管阀.弯曲情况下温度循环后阀门完整性的试验方法
Plastics piping systems . thermoplastics valves . test method for the integrity of a valve after temperature cycling under bending
塑料管道系统.热塑性塑料阀门.受弯曲作用的温度周期变化后阀门完好性的试验方法