B-Cr-RE共渗剂
chromium-RE-baronizing powder
增渗剂
permeability enhancing agent
nneability - increasing agent
稀土催渗剂
the rare earth accelerant
透皮促渗剂
Transdermal penetration enhancers
penetration enhancer
抗渗剂
waterproofing agent
Penetration-resistant agent
抗裂防渗剂
leak proof agent
crack and permeation resistance
固体稀土缓释催渗剂
solid rare earth slow release accelerant
高渗剂
High permeability solvent
多元共渗剂
multi-component thermo-chemical treatment agent