... , B, C, D, DC, DP, E, F 3Material:PP-R High quality PP typeDF rubber coupling 1Sizes:1/2" to 4" 2Types ... :A, B, C, D, DC, DP, E, F 3Material:PP-RCOMPANY INTRODUCTION Ninghai Xinming Hard&Plastic Factory.Iocated in Science ... EXPWYcrossed through.Covering an area of6000 sqyare meters.we have 10 sets of advanced computer injection equipment and various otheracvanced production ...