This catalog presents three eco-friendly industrial chemical series. The e Clean21 series (bromine base) is a non-flammable, fast-drying cleaning solvent for metal and PCBs, with low ODP (0.013) and GWP (0.0001), compatible with existing trichloroethylene equipment. The e Clean21 F series (fluorine base) is a next-generation solvent for PCB, rubber, and plastic, offering superior detergency, zero ODP, and low GWP for fine cleaning. The e Solve21 series is a non-flammable, fast-drying resin dissolving agent, effectively dissolving cured resins like acrylic, silicone, and epoxy, also with low ODP (0.013) and GWP (0.0001). All series promote environmental responsibility and support ISO14000 via recycling.