... etc, and China's standard 4053-83. Matt stainless steel surface is in line with environmental requirements. Type IndicationI. ... Table below. VII. Materials: C = carbon steel; S=stainless steelVIII. Oter Ball-connected Handrail Railing Specification Table SizeOut Diameter of ... , MB (Multi ball).2. Types of Inclined Railing include PA, CA, WA, SAL, SAR, AM, SOAL, SOAR. steel ball joint tube stanchion