http://www.xn-boiler.com/Industrial Boiler System About Xi'neng meters, with more than 500 workers and more than 150 engineering technicians of various types. Our company holds "S" and "U" stamps of ASME (American Society of Mechanical Engineers) standards, Class-A Boiler Manufacturing License, D1D2 Pressure Vessel Manufacturing License of China. We have established and maintained a Quality Management System certified according to the internat