... threading ends 16.20.25.32.40mm OEM conduit box class4 and class 3 conduit's fittings are ... Bs4568 Electrical Conduits. - Protect Electrical Cables and Wires - Material: Steel Pipe - Thickness: 1.5mm-2.0mm - Finished: Hot dipped ... 2-way, 3-way, 4-way, Terminal Box, Intersection Box, Through Box, Tee Box, Angle Box. 2) Available sizes: 20mm and 25mm, 32mm. ... 00φ5050-0.4±0.15±50.00 Steel Conduit box