Inquiry (采购产品): Instruction I Need some instructions on a rockwell hardness tester made by you. This is for an avaiton class rockwell tester has been sitting there for a few years and nobody know's how to use it exactly. So if I could get some help with it that would be great. Thanks Model # US 12 Serial # 15775 **** Hidden Message ***** Scott Drake 59601 Company: Helena Technology Avaition Division E-mail: scott72_32@hotmail.com **** Hidden Message ***** scott72_32@hotmail.com
