... etc. 2)Material: boron alloy, boron-copper alloy casting iron & Mixing with chrome, molybdenum, nickel etc. 3)Different Treatment: Phosphated, ... etc. (3)Material: boron alloy, boron-copper alloy casting iron & Mixing with chrome, molybdenum, nickel etc. (4) our Cylinder liner ... 5) we are factory, have 45 years produce experience, with advanced product technology and material, if you can offer sample ...