According to the organizational structure, raw materials, processing technology, texture, appearance and main purpose of silk fabrics, it is divided into fourteen categories.The ancient silk fabrics are basicall…
MORE +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 for a clever wife to cook without rice). Then differentiate according to…
MORE +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 smell of burning paper, and the charred embers are soft and dark gray…
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