Shanghai Pudong New Area No.2 Waterproofing Engineering No.2 Chemistry Building Materials No.2 Water Supply and Drainage Design No.2 Pipe Fittings No.2 Water Supply and Drainage Engineering No.2 Water Purification Technology No.3 Water Supply and Drainage No.3 Water Pipes No.4 Plastic Products No.4 Pipes No.5 Waterproofing Technology No.5 Jian Zhu Nuan Tong 名牌产品 市级高新技术企业 市名牌产品 高新技术企业 副会长单位 会长单位