spherical plain bearing 1, ISO 9001; 2000 certificate, 2, Quality control 3, OEM experience 4, Own factory with low price 1.Rod End Series: PHS ... SA..BK, GIR..UK, GIR..UK-2RS 2.Rod End Material: mentallic and non-mentallic materialsMetallic materials like brass,bronze,iron,or ... steel and often plated with zinc or chromiumNon-mentallic materials like plastic,nylon 3.Rod End Models:(1) PHS530 ...