Rubber Diaphragm Material : Butyronitrile rubber is the basic material. Main application : prevent drilling fluid returning from the drilling . Clear drilling fluid on the drillpipe wall to prevent the corrosion of metal.
3. Large Stock,Over 30,000 sizes and more than 1 million pieces in stock. We have the full range of mould size and stable and high quality production line to ensure delivery, , Welcome OEM/ODM order. Large Stock Over 30,000 sizes and more than 1 million pieces in stock.