Place of Origin: Zhejiang, China (Mainland) Brand Name: Ranlic Model Number: RL15-20-4 Type: Heat Shrinkable Material: Steel Product Name: BS4568 conduit Application: Electric Cable Wire Protection Standard: BS4568 Outside diameter MAX 20mm/25mm/32mm/38mm/50mm/63mm/74mm Galvanized thick: 40 micron Finish: Hot-dip Gal Item: Galvanized steel pipe manufacturers china Structure: Round section Length: 3.75 M Printed: size,logo & standard.