Egyptian Passport (Old Version)

Hellow,
This is Jamal Abdelfattah, writting from Jeddah, KSA. I plan to go China on business visa. I'm visiting manufacturing companies in Maanshan,Anhui, Jiangsu and Shanghai. I need advise on the followings:
1- Is the old version Egyptian Passport accepted to apply for business type in Chinese Consulate in Cairo.
2- Do I need an Invitation Letter from each manufacturer in order to go differenent districts inside the mainland.
thank you