1) 1,2,3-Benzotriazole 99.8% 2) white granule or powder 3) water treatment chemical 4) rust-preventer,antifreezing liquid 1,2,3- ... ,hydraulic oil,brake oil,transformer's oil),emugent,water stabilizer,the additive for high molecular materials'(polyester ... s oil),emugent,water stabilizer,the additive for high molecular materials'(polyester and polyesteramide)capacity 1,2,3-Benzotriazole 99 ...