Brief Introduction for 12.5 m qu 70 crane rail We are the professional supplier of crane rail for single double girder gantry and bridge crane, our main trading slope including all kind of Chinese standard crane rail for single double girder gantry and bridge crane, such as QU70, QU 80,QU90 and QU 100, also included in all Chinese standard light rail, heavy rail. Parts of 12.5 m qu 70 crane rail We can also supply all kind of rail accessories, such as joint bar, bolts and nuts to connect rails, clamps, foundation bolts and nuts to fix the rails on the ground or steel I-beam.