This product adopts vacuum heat treatment and imported raw materials, smooth mesh without burr mesh smooth. Specifications are 40 mesh x 0.18 x 0.5 or 1 x 30 m, 40 mesh x 0.19-0.23 or 0.25 x 0.5 or 1 x 30 m, 45 mesh x 0.19-0.21 x 0.5 or 1 x 30 m, 50 mesh x 0.18-0.21 x 0.5 or 1 x 30 m, 60 mesh x 0.15 or 0.17 x 0.5 or 1 x 30 m, 80 mesh x 0.12 or 0.15 x 0.5 or 1 x 30 m, 100 mesh x 0.10 x 0.5 or 1 x 30 m