flexible coupling 1.ISO9001,ISO14001 2.12 years OEM producing experience 3.partner:FLSMIDTH &Co. A/S 4.DN25mm~DN5000mm Flexible coupling,flexible pipe joint,pipe coupling: 1:Basic characteristic: The product is used for pipe connection characterized of simple installation and reliable performance.Under low pressure,the sealng is achived through the elastic deformation of seal ring.When the ...