concrete pump S valve 1. Welding type 2. Casting type We, Zhuzhou Jian ... include but not limit to spectacle wear plate, wear ring, s pipe, chrome bushing, swing lever, intermidiate ring etc. 1. Tungsten carbide ... , Kyokuto, Sany, Zoomlion, Sermac, IHI, Niigata etc 2. S pipe and related S valve partsFitting to Sany, Zoomlion, Kyokuto, Putzmeister, Waitzinger etc ...