a.Stainless steel Handrails / Isolation Railings. b.Outside Diameter 10~219mm, Tolerance 0.1~0.35mm c.Thickness 1.0~10.0mm. Stainless steel Handrails / Isolation Railings.This appliance is good for Isolation Railings, Bridge Ralilings, Deck Handrails, Stair Handrails, Balcony Railings..etc.a. Outside Diameter φ10mm~φ219mm, Tolerance ±0.1~0.35mm.b. Wall-Thickness 0.8~10.0mm, Tolerance ±0.1mm.c. ...