Galvanised Tee Box 1. High quality with SGS, ISO 2. standard: BS4568, BS EN 50086 3. hot dipped galvainzed Galvanised Tee ... Box 1)- Leading Professional Manufacturer 2)- Certificate: ISO, SGS, ITS, BSI ... back outlet type5)- Thread: DIN, BS, NPT, G Thread, Metric6)- Standard: BS 4568 Part 2, BSEN50086-2-1,IEC670:19897)- Materials ...