P for the trade limited company   

Every piece of clothing to cut in before, we must first ascertain its positive and negative. Generally speaking, plain in addition to printed color pattern, there is no positive and negative difference. Jacquard cloth, knitted fine side is positive, have long yarn pick side for the opposite. Denim fabric, can see lines inclined potential it: serge, double-sided cards, waterproof cloth, twill is positive to the left from the right; and twill, Hua Dane and khaki, positive twill from upper left to lower right; wool or some chemical fiber product is double folding, folding on the inside of the front side.