7% Azurfa Nitrate Zaɓen Tawada Tawada don Kamfen

Tawadan zabe ya samo asali ne daga Indiya don magance matsalar magudin zabe. A cikin shekarun 1960, Indiya ta ƙera tawada mai ɗauke da nitrate na azurfa, wanda ya zama alamar shuɗi-purple mai dorewa bayan an shafa shi a yatsun masu jefa ƙuri'a, yadda ya kamata ya hana maimaita kada kuri'a. Daga baya kasashe da dama suka amince da shi kuma ya zama muhimmiyar hanya don tabbatar da daidaiton zabe.

Tawada na Obooc yana da ingantaccen inganci. Ya keɓance tawada don manyan ayyukan zaɓe na shugabanni da gwamnoni a cikin ƙasashe sama da 30 a Asiya, Afirka da sauran yankuna, kuma yana da fiye da shekaru 20 na ƙwarewar samarwa na musamman.
● Sauƙaƙe da bayyana alama: Yana bushewa a cikin daƙiƙa 10-20 bayan shafa wa fata ko kusoshi, oxidized zuwa launin ruwan kasa;
● Ci gaban launi mai dorewa: Ba sauƙin fashewa ba, alamar yana ɗaukar akalla kwanaki 5;
● Ci gaban launin tawada mai tsayayye: Mai hana ruwa da gumi, ba sauƙin gogewa ko wankewa ba;
● Haɗuwa da ƙa'idodin majalisa: kayan inganci masu inganci da fasaha mai girma, mai sauƙin amfani, tallace-tallace kai tsaye na masana'anta, isarwa mai inganci.