Ball Screw Support BKBF12 1: Accuracy is C7 2: Large stock 3: Section Model: BKBF10, BKBF12, BKBF15, BKBF17, BKBF20, BKBE25, BKBF30 We are specialized in bearing export, production, selling and after-service. Bearing products are sold very well in Asia, Africa, North and South America and Europe. The high quality product, the preferential benefit price, high quality service is our advantage. We warmly welcome friends at home and abroad to negotiate business!