1. main materials: alloy steel, carbon steel, stainless steel 3.weight range: 100-5000kg 4.specification: diameter: 80-2000mm, Max length: 10m 5.application: used for power generation 6.QA DOC: chemical composition report, mechanical properties report, UT report, heat treatment report, dimensions check report 7.inspection: in house and by the third party 8.customized service offered with drawing and detailed technical requirements 9. one-stop service: raw material, rough machining, finish machining, QA DOC