... industry.Composition: Plastic decks,Powder coating fixed/foldable handle,Silent Casters(nylon stand,iron stand)1.Plastic Deck: main material is PP ... process4. Trait: Upscale, artistic, durable.5. Silent casters: Wheel stand made by special nylon, iron and other ingredients.6.Features ... weight to caster for 3 min, after test, caster stand willnot be distorted, rotational axle and swivel axis willnot be ...