food tube: 1)ISO&PED 2)Top material supplier 3)strict tolerance control 4)Imported equipment Surface180G, 320G, 400G Satin / Hairline400G, 500G, 600G or 800G Mirror finishApplicationDecoration construction, upholstery, industry instrumentTestSquash test, extended test, water pressure test, crystal rot test, heat treatment, NDT Chemical Composition of Material Material Composition201202304316430C≤ ...