You have 4 options to do it at Alibaba,
1) If you are free member you can add 50 new products of your company and access to the buyers.
2) You can register one banner of Alibaba Advertising system and let the others know your company.
3) If you are not a trust pass member, I suggest you to be a trust pass member, you can add unlimited products and access to so many buyers.
4) try Super Deal, It's free and effective
The below topics also I hope can help you:
http://resources.alibaba.com/topic/315783/How_to_receive_lots_of_new_inquiries_per_month_.htm
http://resources.alibaba.com/topic/315777/Is_it_worth_to_become_a_Gold_member_or_Trustpass_.htm