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WHY CHOOSE US?
1. We have almost 30 years producing and installment experience of the oil film bearing seals. 

2.We are amongst the first in China to perfect in-house, 
end-to-end production of DF series seals for rolling mills.
3. Our record is “zero defect” in the metallurgical seals space for five consecutive years.

4. we have further developed and obtained our own patents, becoming a pioneer in breaking the monopoly of
international brands on the metalworking oil seal market.
5.We serve dozens of enterprises in China both large and medium-sized.
6. Prompt delivery: delivery in one month; for small quantity the stock available

7. Standard packing: carton and pallet

OUR PRODUCTS

Applications
Primary metals industry

Installment
DF seal can be supplied together with the corresponding Water Seal, or with specific V-Rings (secondary seal).

The performance of the products is as below:

1.Operating temperature range: - 40°C / + 160°C

2. Medium : Film bearing oil, water, cold rolling processing oil

3. Speed : Up to 25m/s

4. Material : NBR / HNBR + Metal

5. Available sizes : Up to 76”( custom design available 

DALIAN YINGYU CO., LIMITED
has been devoted to developing and producing
oil seals used in the metallurgical industry since 1992. We are amongst the first in China to perfect in-
house, end-to-end production of DF series seals for rolling mills. Since then, we have further
developed and obtained our own patents, becoming a pioneer in breaking the monopoly of
international brands on the metalworking oil seal market. We serve dozens of enterprises in China
both large and medium-sized. Our record is “zero defect” in the metallurgical seals space for five
consecutive years. As an ambitious firm that focuses on quality and customer care, we hope to
serve more customers worldwide in the near future.