Accessories, Grinding Wheels Insert Sharpeners. Various accessories include Swiss Dress, Refractometer, dial indicators, coolant, and a comprehensive inventory of diamond and borazon grinding wheels for all makes of grinding machinery. Machine Financing. Pre-Owned Grinding Machinery. Machine Parts Inventory.VR90 Valve Grinder Machine. Brand JINJIANG. This fits your . Make sure this fits by entering your model number. Features 1. This machine is special for grinding the valves in internal combustion engines (the valves in engines on automobiles and tractors), featuring small size, flexible and easy operation. › See product details.