http://www.slcastercart.com/China Aluminium Luggage Airport Trolley manufacturers Hubei Space Double Rhombus Logistics Technology Co., LTD. is a large-scale professional manufacturer of modern casters, airport trolley and series of airport facility and equipment products, which integrate researching, developing, manufacturing and sale in whole. DOUBLE RHOMBUS was founded in 1 9 7 8 and has experienced 40 years of researching and manufacturing. Currently, the company has owned professional and specialized production lines for punching, welding, bending, injection molding, electroplating, assembling and testing. With the extensive application of automated equipment and progressive mould, the productivity has been over 6 0 containers per month. DOUBLE RHOMBUS is a major leading caster manufacturer and supplier for its high quality products and service, which sells both in the international market and the domestic market. The company currently has more than 30 senior professional and technical personnel, more than 20 quality management personnel and has hold a greater capability of new product development and quality control. In 1993, the national Standard Bureau entrusted the corporation to compile the National Standard(GB/T14687-2011) which is the stan