prEN 13476-1-2006 塑料管道系统 第1部分.rar
prEN 13476-1-2006. Plastics piping systems for non-pressure underground
drainage and sewerage. Structured-wall piping systems of unplasticized
poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE).
Part 1. General requirements and performance characteristics
