Strict middling gray 次上级灰棉

Strict middling lighter gray 次上级淡灰棉

Strict middling yellow stained 次上级黄染棉

Strict middling lighter spotted 次上级淡点污棉

Strict middling tinged 次上级淡黄染棉

Strict middling spotted 次上级点污棉

strict middling extra white 四级特白棉

Strict Low Middling 次中级

strict good middling 第二级美棉