Beiduolu Pneumatic Component Co., Ltd. specializes in producing aluminum alloy cylinders with honing polished inside walls. Our products include various types of jars. We also produce in accordance with clients&＃039; designs and drawings. We have three anodic oxidation production lines which provide the colors of appearance with objective oxidation, bronze and sandblast. Our products with hard and smooth inside walls are durable and beautiful, having won praise from lots of clients. Please feel free to contact us for further information.