... 45D, DN125 *R275* 30D etc The casting elbow type is variours, include Putzmeister NO.1 elbow , Putzmeister No.2 elbow , Putzmeister 90D ... , DN125*R500*90D, DN125*R500*45D . This type bend is used in stationary pump . CONCRETE PUMP CLAMP : Our clamp is very popular in ... steel wires . The third one is 4 layer steel wires + 1 layer nylon . Other concrete pump parts : concrete pump harden pipe,DN125*3Metre