... Carbide Base----Zhuzhou City, are specialized in manufacturing concrete pump wear parts for concrete pumps, including Sany, Zoomlion, Putzmeister,Schwing, ... etc. Our products mainly include but not limit to spectacle wear plate, wear ring, s pipe, chrome bushing, swing lever, intermidiate ... ring etc. 1. Tungsten carbide wear plate and wear ring(normal T.C. type and 7 shape T ...