Ningbo Robon Sealing CO.,LTD is a famous rubber products
manufacturer in Ningbo, we produce various rubber products: rubber
seal, rubber o ring ,ED ring, o ring cord, rubber flat washer,
special parts and other rubber products.
The main material we used are NBR, EPDM, VITON, AFLAS, CR, Butyl,
HNBR, SILICON, FFKM, PU or approved by FDA, NSF, WRAS etc.
We have the most advanced vulkameter, hardness tester, projectors,
image instrument,tensile testing machine, and other professional