管道用连接环.材料规范|沙特标准|SASO-ISO-4633
SASO-ISO-4633
Rubber seals – Joint rings for water supply, drainage and sewerage pipelines – Specification for materials
橡胶密封件.供水、排水和污水管道用连接环.材料规范
Applying Type : Standard Specification
Standard Year : 2015
Approval Year : 2020