... epuipment, forestry epuipment, agricultural machinery, oil tools, steel mill machinery, and other demanding hydraulic applicationscouplings MDirect ... 5M52×221602080KJ801A-4040M60×224701664couplings features1.machined from solid steel bar stock for durability.2.the TGW series employs ... from the material of carbon steel, brass, stainless steel,they are the solid bar to ensure the durability.3 ...