一、chemical industry filter paper Trade1、Packaging Way: Plastic bags inside,Website:http ... own logo on products.五、Company Shenyang Great Wall Filtration Cardboard Co.,Ltd is one of main global Filter-paper Cardboard suppliers, founded ... , oral official, edible oil, edible vinegar, instant noodles, colloid, petroleum, chemical industry, electric power, water treatment, paint, dope and many other areas ...