... 316 304 Liugong flange sleeve for loader grader excavator flange 1. for loaders, excavators, grader flanges.2..OEM is acceptable if you ... 304 304 304 carbon steel 20 # Q235 Q345, etc 3. China's steel pipe flange GB national standard system Nominal pressure ... buckets, bucket tooth, blade for buckets, end bits, rockers etc ;Construction machinery track, roller, driving gear, track roller, idler etc ;OEM ...