... of sizes of steel pipes, including spiral steel pipe, hot dip galvanized steel pipe , large diameter galvanized welded steel pipe ,electric galvanized pipe, pre-galvanized pipe, square and rectangular steel pipe, welded steel pipe, ERW pipe, etc. These ... A53, EN102193) Use: Used for low pressure liquids conveyance, such as water, gas, and construction4) Surface: Galvanized (inside & outside)5) Zinc ...