... :DIN 53516 25mm3~165mm3Note: 1.the actual weight needs to be re-determined as the customer’s requirement. 2.Requirements for special working ... according to orders. 3.We can product the size(inner diameter)of you need,it include:3/4,1,1-1/4,1-1/2,1-3/4,2,2 ... -3/8,2-1/2,3,3-1/2,4,5,6,7,8,10,12,18 ect. 2 inch concrete pump ...