... smell, no pollution 3Easy to use Synthetic cutting liquidLH-21 LH-21 synthetic cutting liquid is based on Japanese patents technology ... steel, alloy steel, and other materials. 2.2 Synthetic cutting fluid with excellent lubricating, rust-proof, cooling, cleaning performance can ... toxic, no odor, no pollution, no stimulation for skin, non-corrosive machine tool parts and paint face through long-term use ...