Titanium Bicycle Stem made by casting way, no welding material:GR5 (Ti6Al4V), OEM is welcome! ... professional titanium bicycle frame and parts manufacturer and supplier in China. We have made many customer's bicycle parts. We can supply a ... frame, track frame, BMX frame, cycloss frame etc. ), titanium bicycle parts (handlebar, clamp, stems, seat posts, fork, spacer, etc. ) and titanium ...