flat top: wire cloth with deep crimps, as in lock crimp, except that all crimps are on the underside of the cloth,leaving the top surface all in one plane. Sometimes designated smooth top.
Flat top crimp creates a smooth top surface—with no high points—as all wires are woven on a single plane. Its bottom side, however, has crimp bumps approximately twice the height of lock crimp bumps. Flat top was originally created to allow for the smooth flow of materials over the surface and provide a flat face for use as backer screens. Flat top is ideal for aggregate sizing and sorting, agriculture, filtration, and heat-treating applications
