According to the organizational structure, raw materials, processing technology, texture, appearance and main purpose of silk fabrics, it is …
First of all, there must be a large and spacious warehouse. If the warehouse is small, it can’t be stacked by any method (it is difficult fo…
Simple combustion method:Cotton, it burns when exposed to fire, has a fast speed, is a yellow flame, has a slight grayish white smoke and the…
