... : 75mm,100mm, 125mm3.Caster material: Hard rubber with delrin bearing,pressed steel,zinc plated,double ... is located in Yangjiang city, Guangdong of China, with 168,000 square-meter beautiful scenery factory ... ’ choices and wide different usage, such as, for industrial machine, medical facility, furniture, trolley, shopping cart, ... Factory 65 American type hard rubber side brake industrial rubber caster