B
blue moon
Dear Mr
i hear about title related with quality
5Y and 5M
i know that the 5Y is the 5 why
but i didn't know what is the 5M ?
can any one help me to know what it is ? and how to use it ?
i hear about title related with quality
5Y and 5M
i know that the 5Y is the 5 why
but i didn't know what is the 5M ?
can any one help me to know what it is ? and how to use it ?