... ring,and easy to control,with long use life. Automatic Winder for SWG can make spiral wound gasket with or without ... dia. Size controlled by air pump. Automatic work controlled by PD, auto welded, Especially for large batch fewer specification.Specification:> Power: ... '' to 18''. Other standard on request.More information of automatic winder for spiral wound gaskets,please feel free to contact SUNWELL ...