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Kelly Hose Supplying System
Raw Material
Raw Material Property Test in Our Own Lab

Raw Material—Rubber
NBR LG Chem Brand from Korean

Raw Material—Rubber
HNBR Lanxess Brand from Germany

Raw Material—Steel Wire China Brand

Raw Material Property Test—Rubber

  1. Rubber Anti-aging Property
    To test the anti-aging property of the rubber, we put it in a
    particular machine with a temperature +100℃ for 24hours.
  2. Plasticity
  3. Adhesion Property
    To test the adhesion between the rubber and steel wire, we put them together on the vulcanization machine.

Raw Material Property Test—Rubber

  1. Rubber Strength and Breaking Elongation Property

Raw Material Property Test—Rubber

  1. Rubber Hardness Property

Kelly Hose Company Profile
Jingbo is also the first grade supplier of CNPC, SINOPEC and CNOOC. As China’ s first API authorized manufacturer of oilfield hoses, Jingbo has got the certificates of API Spec 7K-0376, API Spec 16C-0374, API Spec 16D-0140 and API ISO 9001-2008.
Jingbo sets up advanced laboratory and is committed continuously to improving production technology.
The development of new formula improves the production efficiency and product quality. Jingbo has strong quality control
team and tests each batch of material.
A 100% full inspection of finished products before delivery is made to provide quality products for customers.
Markets,We have clients in more than 40 countries. Such as the USA, Mexico, Brazil, Argentina, Russia, Malaysia, Singapore, Indonesia, India, Germany, Britain, Holland, Kuwait, Saudi Arabia, Iran, the UAE, etc. 80% domestic market shares.