空调用无规共聚聚丙烯(PP-R)塑铝稳态复合管管道工程技术规程(附条文说明)
Technical specification of random Polypropylene/Alumonum stable composite pipeline for air-conditioning
T/CECS 337-2013
建筑给水纤维增强无规共聚聚丙烯复合管道工程技术规程
2013-04-11
T/CECS 404-2015
建筑排水聚丙烯静音管道工程技术规程
2015-07-01
CECS 337-2013
建筑给水纤维增强无规共聚聚丙烯复合管道工程技术规程(附条文说明)
Technical specification for fiber reinforced polypropylene random copolymer composite pipeline of building water supply