Fiber or fibre see spelling differences, from the Latin fibra is a natural or synthetic substance that is significantly longer than it is wide Fibers are often used in the manufacture of other materials. The strongest engineering materials often incorporate fibers, for example carbon fiber and ultra-high-molecular-weight polyethylene.Synthetic fibers can often be produced very cheaply and in

圖片編號： 151919595
拍攝者： Biplobkor