Detailed Product Description Universal Joint Drive Shaft for Industry and Mechanism Features:1) Material:20 Cr or CrMnTi2) ... according to each other customers requests to engrave it on the products5) ISO9001:2000 certificated6) Pure-hearted services7) Flexible ... Metallurgy Industry,Iron & Steel Industry,Petroleum Industry,Chemical Industry and Paper Making,such as metal machinery, rolling mills, mill ...