|
|
SurTec 691 I
SurTec 691 II SurTec 691 III SurTec 691 IV - 4 components - Hexavalent chromium free black passivation - Suitable for room temperature - Specially developed for plating of bulk commodity - Produce uniform black layers on Alkaline Cyanide free zinc - Excellence corrosion protection and friction coefficient - Easy waste water treatment - Usable with convention equipment |
|
|
|
