... pump 3. Type: hardfacing, T.C Wear ring fo Putzmeister concrete pump 1. Size: Dn180, DN200, N230...etc2. Material: # ... from Germany3. Made in Zhuzhou, ChinaCompany brief introductionLeading manufacturer for concrete pump spare parts, main products as below:1. wear ... and related S valve parts3. Delivery Pipe(both normal and hardened) , elbow(welding& casting), reducer, rubber hose, clamp coupling, ...