Diesel engine powered trucks, buses, ships and other heavy equipment are all major sources of diesel exhaust.We can see the black stuff caused by unburned fuel oil.We can add a little of oxygen and hydrogen for better combustion support for diesel generat

Oxyhydrogen flame scientific glass vacuum sealing blowing lathe machine OK-M30 also known as glass blowing lathe or horizontal glass lathe,which is designed for simple, safety, precision and high efficient sealing operation under required vaccum degree la