Cold rolled galvanized steel pipe 1)Thickness:1.0-6.5mm ... , d. Cutting head, e. Pickling, f. Grinding, g.Lubrication, h. Cold rolling, i. Degreasing, j. Solution heat treatment, k. Straightening ... , l. Cutting, m. Pickling, n. Inspection 12.Application:Water pipes, fire ... 4 10.851255140 4 13.421506165 4.5 17.81 Cold rolled galvanized steel pipe