Stainless Steel PU Heavy Duty Caster Free Sample 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