... second or 80mm straight line 3. pin of marking machine impactive frequency:400 times/S, rigidity :HRA93 4. ... and rotation marking machine : Besides the normal marking range, others can be designed for special needs.5. can mark 0. ... 2) Applications:Automobile, motorcycle, voyage, spaceflight, shipping, petroleum-machine, engineering- machine, steel, tool producing, war industry, fire fighting, mould and ...