Chrome Plated Honed Tube

We are offering chrome honed tube (inside surface honed and outside surface chrome) (1) id: 20-460 mm (2) od: 30-500mm (3) length: max 13m (4) steel grade: st52, st52.3, ck45, 4140, 16mn, 20#, 40cr, stainless steel, etc. (5) straightness: 0.2~0.4 1000 (6) tolerance: din 2391, iso h8 (7) roughness(ra): 0.2 to 0.4µ (8) chrome thickness: 20~ 50 micron (9) type：cold drawing, normalizing treatment, honing or skiving, chrome outside surface. (10) conservation: anti rust oiled coating on the inside and outside of the surface, plastic caps at both ends (11) package: wooden case