... various of Pipe Hangers & Supports, stamping parts, machining parts, fabricated parts, welded steel structure parts Zhuji Yueyang Environmental Engineering & Material Co ... and renovation of Air Pollution Control Equipment such as Electrostatic Precipitators, Fabric Filters, Pneumatic Conveying ... , drilling, shearing machines; different welding machines such as TIG, CO2 shield and AC/DC, Spot-Welding ...