| Feature: 1. ALLOY STEEL MATERIAL: Made of premium alloy steel material, this tube expander is strong and sturdy, not easy to deform, reliable for long term use. 2. WIDE APPLICATION: Tube expander is widely used in the manufacturing and maintenance of pressure vessels such as condensers, coolers, heat exchangers , and boilers in industries such as refrigeration, petrochemical, power, shipbuilding, and metallurgy. 3. FINE WORKMANSHIP: Well crafted with smoothly and fine appearance, the expander and other tools will not scratch equipment or hands during use, choose with confidence! 4. 7 SPECIFICATIONS: There are 7 specifications 38in, 12in, 58ni, 34in, 78in, 1in, 1?18in expanding jaws, use them … | |