Qingdao Jinjingwei Port Machinery Co., Ltd. is specialized in developing and manufacturing grabs with sound technical force and many years’ experience of designing grabs. The company overcame the difficulties in grab design that all the grabs have been proved to be wear-proof with long use lift and grabing ratio up to 1:1.5, which was advanced in China and the whole world. The products are widely used in the ports and electric power plants along the coast in China, and are well received.