Detailed Description Concrete pump elbow: 1.We are professional concrete pump pipe manufacturer in China, which has been established more than 13 years in this field. Our products include concrete delivery pipes, elbows, reducers, couplings, rubber hoses, cleaning ball and so on. 2. Our elbows are high manganese steel casted, and flanges are casted together with elbows. 3. The service life is 25,000-30,000 cubic meters and can be used on Schwing, Putzmeister, Kyokuto, Cifa, Sany, Zoomlion, etc. Technical Data: DN125 (5�� x R1000 X 90, groove148mm/FM/HDflangesDN125 (5�� x R1000 X 60, groove148mm/FM/HDflangesDN125 (5�� x R1000 X 45, groove148mm/FM/HDflangesDN125 (5�� x R1000 X 30, groove148mm/FM/HDflangesDN125 (5�� x R500 X 90, groove 148mm/FM/HDflangesDN125 (5�� x R500 X 60, groove 148mm/FM/HDflangesDN125 (5�� x R500 X 45, groove 148mm/FM/HDflangesDN125 (5�� x R500 X 30, groove 148mm/FM/HDflanges DN100 (4�� x R1000 X 90, groove127mm/FM/HDflangesDN100 (4�� x R1000 X 60, groove127mm/FM/HDflangesDN100 (4�� x R1000 X 45, groove127mm/FM/HDflangesDN100 (4�� x R1000 X 30, groove127mm/FM/HDflangesDN100 (4�� x R500 X 90, groove 127mm/FM/HDflangesDN100 (4�� x R500 X 60, groove 127mm/FM/HDflangesDN100 (4�� x R500 X 45, groove 127mm/FM/HDflangesDN100 (4�� x R500 X 30, groove 127mm/FM/HDflangesDN100 (4�� x R343 X 90, groove 122mm/FM/HDflangesDN100 (4�� x R343 X 60, groove 122mm/FM/HDflangesDN100 (4�� x R343 X 45, groove 122mm/FM/HDflangesDN100 (4�� x R343 X 30, groove 122mm/FM/HDflanges DN150 (6�� x R1000 X 90, FM/HD flangesDN150 (6�� x R1000 X 60, FM/HD flangesDN150 (6�� x R1000 X 45, FM/HD flangesDN150 (6�� x R1000 X 30, FM/HD flangesDN150 (6�� x R500 X 90, FM/HD flangesDN150