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Home | PTG
Today, our group comprises PTG Holroyd Machine Tools, PTG Friction Stir Welding Machines and PTG Holroyd Precision Rotor Milling Machines . PTG Holroyd Machine Tools PTG Holroyd's gear, rotor, thread and pumpscrew milling and grinding machines produce the world's most accurate helical components. PTG Powerstir Friction Stir Welding