... S ASME Pressure Vessel Certificate 3) ISO9001:2008 ABS,DNV Welding Frame Structure1) Material : carbon steel ,stainless steel 304,sus ... 316L,sus 316Ti,aluminium alloy2) Processing: hand welding,laser welding, SAW,TIG,surfacing welding,etc.3) Surface finish: zinc plating ,hot ... LR6) We provide OEM /ODM sevice in machinery and products area.7) Darwing available :AUTO CAD, PRO/E ,SolidWorks,UG,CAXA.8 ...