久久国内外免费视频_日本黄三级视频_一本大道在线观看无码一区_8050网午夜一级毛片

×

Fabric warp and weft density mirror

Video
Gallery
360°Show
×
×
×
Applicable scope
Test principles and standards
Instrument characteristics
Configuration list

Shanghai twelfth silk fabric factory made of Shanghai 00000380 glass material. The weft density mirror is a simple measure for measuring the warp and weft density of all kinds of fabrics, such as silk, cotton and wool. As long as we choose the right density mirror (type) and the parallel (weft) line of the fabric, we can see a clear diamond shape. The scale shown on the top and bottom of the diamond corner is the number of lines per centimeter.