supply 18mm linear axis SF20 made in china Jinan Dunmu Electrical and Mechanical Co.,ltd chaochunli at live dot com Jinan Dunmu Electrical and Mechanical Co., Ltd. was established in September 2005 and is located in the beautiful Jinan city, enjoying convenient transportation access and a beautiful environment. Our company covers an area of 1000 square meters and has 100 employees. We are specialized in marketing and producing linear guide, ball screw, linear bearing and have an annual production capacity of 9.5 million cases every year. Our company has rich experience in the hardware & electrical industry. Our main products include linear guide, ball screw, linear bearing. Besides, we are making great efforts to develop new products to meet different requirements. Our company has quality control equipment to strictly control product quality.