... contact us.Updated: March 13, 2013Features:1. About flange Flange is a part connecting pipe with another pipe. Hole ... There are two kinds of flange: threaded connection (screwed) flange and welding flange. 2. Flange material common flange materials: stainless steel 304 304 ... , end bits, rockers etc ;Construction machinery track, roller, driving gear, track roller, idler etc ;OEM: Made as customer ...