... kinds of sizes,colors are available OEM , Product Name customized rubber diaphragmCertificateISO9001:2008Country of OriginChinaAdvantagea. high quality ,lower ... can provide you with many different sizes of customized Rubber gasket according to your drawing or samplesMatetialNBR, ... requirement ,such as ,anti-aging ,acid ,alkali ,water,oil,high low temperature resistance and UV etcOEMWe have 20years ...