Provided with a driven wheel DSW-40B double (four beads) omnidirectional wheel caster between every two wheel teeth. Serves a variety of two-way four omnidirectional wheel bead omnidirectional wheel, is Tong Machinery (online consultation), omnidirectional wheel by Ning County is Tong Machinery Plastic Limited. Ning County is Tong Machinery Plastic Co., Ltd. (www.dzztjx.com) is Dezhou, plastic leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Tong mechanical positive leadership with the staff warmly welcome all inquiries negotiations to create a positive Tong Machinery better future.