cummins 6bt cylinder liner: 1. Raw Material: Boron alloy iron casting 2. Types: wet and dry way 3. OEM:Parkerising, plasma SGS Certification Boron alloy iron casting PHOSPHATED auto engine dry and wet car cylinder liner / Cummins 6bt cylinder liner:such as: Hino, Nissan, Isuzu, Perkins, DAF, Yanmar, Kia, Iveco and so on...1. Raw Material: Boron alloy iron casting. 2. Types: wet and dry way.3. OEM ...