... hot-dipped galvanization zinc. It has the characteristics of being novel, beautiful, convenient to install, sturdy, durable, and maintenance- ... path, platform, stairs and separating fence, etc. The products accord with the international standard: British BS 6399 and BS 6180, ... , 1200mm, 1500mm, 2000mm;4. Size of the Steel Pipe: Subjected to the confirmed drawing by both parties.Rail Types1. Types of ...