... be simple and easy to do business with us. Quality control system:Every batches of material will be tested in density, HRA ... , test report will be kept in our files.Strict quality control system to make sure every single piece can match your requests ... , A10, A12, A16, A20, A25, A32, A40, A50Carbide brazed tips-Type B: B5, B6, B8, B10, B12, B16, B20, B25, B32 ...