But do you have any idea about these different words and numbers?
As we all know, there are different air pressure and flow rate for different sewage treatment blowers. Then the dimension size of blower's inlet and outlet can be different, too. It is 50mm, 65mm, 80mm, 100mm, 125mm, 150mm, 175mm, 200mm, 250mm, 300mm, or even larger. At most the time, these size no. of sewage treatment blower including the manufacturer's special words and the dimension of blower's inlet.