... : machining and welding 4.Surface finish: Spray Painting 1) Single roller ,Double rollers, Triple rollers 2) Dimension with flange mounting3) Loads ... ,BV,KR,LR,GL,NK Optional Feature1)Customize roller dimension available.2)Customize bearing brand3)Customize paint colour4)Third party certification:ABS ... :AUTO CAD,PRO/ENGINEER , SolidWorks ,PDF,UG,etc. marine stern roller