The main body is made of high strength alloy aluminumby die-casting

All parts of holder is made of alloy copper, durable use

Worm wheel and worm is Gear-box is made of special material, bear wear and tear

The speed system is adjusted by feeler of controlling silicon unit, easy operating;

Oxygen acetylene hoses imported from abroad;

Quick switch for hose assembly, easy operating;

Suitable for ship building, oil, chemical, and metal structure factory, etc;