How to drill through galvanized steel strip quality piercing eye
The quality of the strip is not good, quality is not good, which made galvanized pipe, can not bend 90 degrees, depending on the quality of the strip material; general material, galvanized can be plated well.
To distinguish the quality of galvanized strip is mainly from the aspects of surface finish / coating thickness / coating thickness difference / coating adhesion / salt fog test time and so on. GB 4175.2-1984 armored cables, galvanized steel strip, /GB-T 15392-1994, width less than 700mm, continuous hot-dip galvanized steel strip, etc., as you requested.
