1.dia:300mm-3000mm 2.rough forged, open/closed die forging 3.single weight: 3t-45t 4.ultrasonic test 5.ISO9001,ISO14001 large forged shaft1. materials: carbon steel, alloy steel and stainless steel2. production capacity: 3,000 tons / month3. test: ultrasonic test4. max length: 24m, single weight: 3 tons-45 tons5. certificates: ISO9001:2008, ISO14001:2004, OHSMS18001:20076. area of factory: 187, ...