Santar Technology, founded in 2003, which is a big manufacturer of concrete pump parts in Hunan, China. Our products including concrete pump S valve, spectacle wear plate, cutting ring, elbow, pipe, hydraulic pump, piston, slewing lever, slewing cylinder,etc. And all these products have different model number or brand, namely Putzmeister, Sany, Zoomlion, Kyokuto, Jun Jin, CIFA, Sermac, Hold, etc. I can make sure that our product quality is at the forefront of those manufacturers in this field. Also the price we give you will be the most competitive. If you have any question on the product or price pls let me know. We accept develop new products upon your drawing, and your satisfaction always comes the first.