... Load capacity: from 70g up to 90kg per caster 2.Wheel diameter: 75mm,100mm, 125mm3.Caster material: Hard rubber ... 1981, which is located in Yangjiang city, Guangdong of China, with 168,000 square-meter beautiful scenery factory.We ... , our turnover of 2011 is USD27,000,000. Our wheel diameter is from 15mm to 300mm, materials include rubber, ... type hard rubber top brake nylon pedal locking wheel casters