Just want to know, and some tape measure a few dollars, and some hundreds of dollars, how to distinguish ah?
But I usually ask for a ruler at least 2 meters outPS: sadly, the most expensive ruler I used was 28 dollars after so long. I don't know what kind of ruler is on a hundred dollars
The tape measure pulls out the steel sheet, at least 1.5 meters, can stir up in the air, won't discount bending.Cheap steel is too thin for home use.
Foot bar height can be artificially processed, as a basis, and not allowed, as long as the manufacturers in production, so that the foot of the curve of bigger points on the line, and if the same manufacturers are not the same weight. From the thickness of the shell to the thickness of the tape can be controlled, but the appearance is the same. One price, one copy. Hundreds of tape tape I have not seen, a single function tape, high density, small error, super grade bars are generally export, for domestic can only say, we think you can use it.