... welded stainless steel round or circular pipes for handrails decoration and construction in good quality 1.Brand Name:ZaiHui 2.Feature ... pipes,from the material picking,rolling,striping,pipe making,polishing,and package all these procession. 3.Certification:ISO 9001:2008,ISO ... ,40,41.8,42,45,48,50,50.8,56,57,60,63.5,76.2,80,89,101.6,108 ... ≤0.045≤0.04≤0.045≤0.045Mn8.5-10.57.5-10≤2.0≤2.0≤2.0≤1.0 ...