Rubber O-Rings
The company's own category list includes rubber O-rings, and its introduction describes selection of rubber compounds according to the customer's requirements.
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Wuhan Jinggong lists hammer-union sealing rings for high-pressure manifolds; the product name does not establish a numerical rating or interchangeability for a particular union.
Provide the groove or component drawing, medium, temperature, movement and existing part reference where available. Request the proposed seal construction and compound information so the selection can be assessed against the actual mating parts and operating duty. Request the current catalogue or drawing for this item, and confirm the offered configuration and supporting documents with the company before specifying an order.