YuanBo Engineering Co., Ltd. located in industry zone No.88, Hengshui city, Hebei province, China, is a professional supplier of bubble level vials for more than 10 years. We have advanced production equipment, rich experience, high standard quality testing equipment, skilled workers, professional salesman and kind after-sale service. Our products are widely used in engineering machine, leveling instrument, photographic equipment, electronic scale, household appliance and so on. br E-mail: cheryl@yongber.com br Web: www.spiritlevelvials.