Structural form, model and specification 1. Structural type: plain weave, twill, among which twill is divided into full-covered twill and partial-covered twill. 2. Model and specification: The model of the metal wire mesh is indicated by "code and nominal aperture size". A) The code for plain weave is "MPW". B) The code for full-wrapped twill weave is "MXW' C) The code for non-wrapped twill weave is "MBW". Mesh number×basic mesh number in weft/basic diameter of warp thread×basic diameter of weft thread" means.