橡胶膜浪形&橡胶Diaphr

Rubber Diaphragm: Diaphragm material is essentially a layer of specially woven faberic, impregnated() with a thin layer of elastomer, total thicknedd is usually 0.015to 0.045inched. the fabric, which lends high tensile strength to the diaphragm, is designed to permit free circumferential elongation(alloeing g\free rolling action)while preventing axial distortion. This eliminates stretching or ballooning during the stroke