Features:

1.Using time more than 4000 hours
2.High density
3.High hardness
4.Using temperatures up to 2400ºC
5.Wear resistant , acid resistant and alkali resistant
6.Low down the cost of freight , worker,maintaining  and storage
7.Save water and reduce piston wearing

Advantages:
The bi-metal liner offers long service life of about 800 hours, which is 2 to 3 times the lifetime of common ones in severe environment.

AS one of main quick-wear parts, bi-metal liner consists of internal liner,which of made of wear-resistant high chromium alloy,and external liner,which is made of high quality carbon steel.its inner hole hardness is above HRC62 after heat treating,and it can perform a good ability of corrosion resistance and abrasion resistance in poor working condition,its normal service life is more than 800 hours.