HDPE fitting: Socket coupler Butt coupler Antistatic pipeline Negative pressure pipeline PE FittingCouplerFeatures:Material:sinopec 2480 hdpe raw matrialSizes: 20 - 63mmPressure Rating:2.0MPaStandard: ISO 15874: 2003, DIN8077-8078Production temperature: -0- +70°CCertification: ISO9001, ISO14001Color:black or other colors on requestConnection: socket fusion joint,butt fusion joint,electro fusion ...