Shandong Rotech Blower Co.,Ltd, a professional manufacturer of fan, is the wholly-owned subsidiary of SHANDONG KAITAI Group Co,Ltd, Which integrates with technical research .development and production.The main products of Roltech includes centrifugal fan series, axial fan series, boiler fan series, special fan series, cement fan series, dust removal fan series etc.We can also according to customer requirements for design.