... 80 100),high-and-low-pressure pipes have materialsQ23520#16MnST5237Mn5, siphon, adjustable tube, precision steel tubes card 3-5 meters ... wears plate Cutting ring, S pipe swing valve,concrete pump piston hydraulic transmission cylinder seals repair package and rubber ... meters of the reducers. Our company's main apportion concrete pump brands: China Zoomlion, China Sany Heavy Industry, PM (Putzmeister ...