AWWA C508-2017 标准号:AWWA C508-2017 检测标准/方法:2英寸至48英寸(50mm至1200mm)的给水设备用旋启式止回阀 AWWA C508-2017 检测对象:止回阀 检测项目/参数:全部项目 相关标准 《TB/T3145-20186.4》机车单元制动器 《TB/T3145-20186.3》机车单元制动器 《TB/T3145-20186.2》机车单元制动器 《TB/T3145-20...
C507 -11 Ball Valves, 6 In. Through 48 In. (150 mm Through 1,500 mm) Valves, Ball C508 -09 Swing-Check Valves for Waterworks Service, 2 In. Through 24 In. (50-mm Through 600-mm) NPS Valves, Swing-Check C509 -09 Resilient-Seated Gate Valves for Water Supply Service Valves, Gat...