Double-worm slew drive Double-worm slew drive has more rotator in the basic of single-worm slew drive. Large goods in stock waiting for your purchase! Any interesting in our products, please feel free to let us know! Contacter : Mr.Tielin Hill EM: tielinhill at newfoton.com Phone: 86 412 6595138 Fax: 86 412 8606018 Add: Room 1112, Pengchengyuan Building, Guangming Street, Lishan District, Anshan City, Liaoning, China P.C.: 114000