Concrete Pump Pipe --------DN125 (5'') 3 MTR ST52 SEAMLESS SCHWING, PUTZMEISTER, CIFA, SANY, etc Product name:Delivery pipe SpecificationsConcrete Pump Pipe --------ST52 SEAMLESS SCHWING, PUTZMEISTER, CIFA, SANY, ZOOMLION SUPPLIER, ST52 SEAMLESS, DN125 (5'') 3 MTRS LONG 148MM FLANGE1. We are a professional manufacturer of concrete pump parts in China, specialized in producing concrete pump ...