... kg): 31.2mm 4) Solid (inch): 10 x 2.5 heavy duty hand truck Qingdao Ever Better Industrial Co., Ltd ... 100 stuff in our company. We have 2 tool cart factories, 2 rubberfactories, 1 plastic and ... in designing, manufacturing and exporting many models of tool carts,service carts, hand trucks, platform hand ... casters (or castors) which especially for above tool carts. Meanwhile,we can also produce many models ...