... series tig welded stainless steel round or circular pipes for handrails decoration and construction in good quality 1.Brand Name:ZaiHui 2 ... pipes,from the material picking,rolling,striping,pipe making,polishing,and package all these procession. 3.Certification:ISO 9001:2008,ISO ... /400 series tig welded stainless steel round or circular pipes for handrails decoration and construction in good quality