Plastics piping systems for underground drainage and sewerage under pressure. glass - reinforced thermosetting plastics based on unsaturated polyester resin. part 3: fittings.
承压的地下排水和排污工程用塑料管道系统。基于不饱和聚酯树脂的玻璃纤维增强式热固塑料制品。第3部分：配件。
Plastics piping systems for buried and above-ground drainage and sewerage under pressure - Unplasticized poly (vinyl chloride) (PVC-U) - Part 1: specifications for piping components and the system.
地下和地上排水和排污用塑料压力管道系统。未增塑聚氯乙烯(PVC - U)。第1部分：管道件和系统规范。
应用推荐