... design, good quality, quick shipment, factory price. Shot Peening Machine for cleaning structure and pipeProfessional design. Good quality. Quick shipment ... . Factory price.Model No.: LCH1120 This shot blast machine se to clean and de-rust steel structure, H-beam, steel ... 600V, 45 - 500HZ. Passed the test, it can ensure the machine working normally under specific power at the User side..