There are 4 types of panel surface profiled for your choices.Flat type, Micro ribs, Profiled ribs, Wide ribs.
☆ Wide ribs,is also called Trapeze,or linear;
☆ Micro ribs is also called micro profiling,or corrugated ribs;
☆ Profiled ribs is also known as V-shaped trapeze,or grooved ribs;
☆ Flat type is know as pure flat,or no profiling, or smooth profile ,too.
