Qingdao Systra Technologies Co.,Ltd is a specialized vendor for supplying the spare parts to the mineral processing equipment, especially supplying the spare parts of crushing machinery, such as Feed plate, Concave, Mantle, Arm guard, Head, Bowl, Adjustment ring, Main frame, Arm guard, Eccentric, Clamping ring, Bronze Bushing. Our products has installed the machinery under brands FLSmidth, Metso, Sandvick, so we know their quality requirement very well