... various boilers. 2.Structure Centrifugal fan mainly consist of impeller,case,air inlet,adjusting door,transmission,motor,system ... service in customized design and production.5. Parameters of Product Performance 6.Production Technology:CNC Plasma Cutting MachineImpellers ... Arabia,Egypt, Iran,Philippine,Vietnam,Russia,Tanzania, republic of korea,UAE, Israel....9.Order requirementWe will appreciate it a ...