... 1)We supply all kind of bicycle parts 2)With high quality 3)competitive price bicycle seat clampStandard: DIN912, DIN933, DIN84, ... DIN85, DIN963, DIN7991, DIN6912, DIN931, ISO7380, ISO7380 Trox25 , etc. A. mini screw and nuts ... D. we can produce according to customers' drawingsE. Titanium fastener and part for bicycle, titanium seat clamp.