... seamless pipe diameter :20-600mm length: 1--6m Grade:201,202,301,304,321,316,316L,310S,410,430 namestainless steel seamless ... ± 0.0-4.5mmApplicationconstruction upholstery, decorating lighting fitting piece, fluid pipeline, irregular shape tube, duplexing ... ,safe door/windows,gate fitting,inside staircases ,balcony balustades,furniture,sanitary wares,kitchen wares stainless steel seamless pipe