Youqi industrial rubber diaphragms are standard‑type rubber diaphragm components, hardness 70‑75 Shore A. Boasting outstanding ozone resistance, corrosion resistance and favorable electrical insulation properties, these rubber diaphragms perform steadily under complex working conditions. Mainly applied for crankshafts, pumps, hydraulic machines and rotating shafts. Available in size 179, both standard and non‑standard custom sizes are offered, supporting OEM service. Widely used in cylinders, pipelines, food‑grade equipment, aerospace, automobiles, cooling systems and engine gasket sealing scenarios. Manufactured in Shanghai, China. Packed with logo‑printed paper, inner box and outer carton for full‑range product protection during logistics.