... ,hairline,2B 3.Standard : AISI,ASTM,GB, S S Welded Pipe for Handrail SpecificationsStainless Steel Welded Pipe for Handrail 1.Grade: 304, 201 series ... . Appication: construction upholstery, and industry instruments (fencing, railing,safe doors / windows, gate fittings, inside staircases, balcony balustrades,furniture, sanitary wares, kitchen wares ...