Tonjin Technology
OEM/ODM for metal welding-Ton Jin is proud to be a master craftsman of metal joining. We are committed to metal welding service and design, and specialized in TIG welding, braze welding and LUG.
frame, bike, road, single speed, BMX, Fixed gear, MTB, dirt jump, freestyle BMX, cyclocross, E-bike, 29er, 650B, 700C, fillet brazing, LUG, TIG welding, frame manufactory, CR-MO, cromoly, stainless steel, handmade frame, brazing welding, 4130, Reynolds, 931, 853, Columbus, XCR, SPIRI
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