- 12T&18T die casting machine part: plunger/piston/injection rod. - Size: dia. 32mm, 35mm, 38mm. GLIDA(R) 12T, 18T full ... automatic hot chamber die casting machine part:Plunger/Piston/Injection rod, it is for material injection purpose.Material: Heat-resisting steel ... days if in stock. die casting machine plunger/piston/injection rod