GB/T 19812.7-2024塑料节水灌溉器材第7部分:微灌用塑料阀门国家标准
英文:Plastic equipment for water saving irrigation—Part 7: Plastic valve for micro-irrigation GB/T 19812.7-2024介绍: 国家标准《塑料...
英文:Plastic equipment for water saving irrigation—Part 7: Plastic valve for micro-irrigation GB/T 19812.7-2024介绍: 国家标准《塑料...