Can I get tourist visas for Uzbekistan, Kyrgyzstan and Turkmenistan in Beijing?

Hi Dear,
I'm a Hong Kong citizen, and would like to visit these three countries in coming Aug. What are the addresses and contact numbers? I've both HKSAR and BN(O) passports. Which passport should I use to apply the visas easier? Please also let me know the process time of each visa. Thank you.
Dicky Chow