A: Network, You can find the slurry pump by Google, B2B and other ways.Check every details of the company.
B: Phone call, Its convenient by the phone to confirm what you want and the company can supply
C: Visit, If time ok, you can just check the company by visiting, see what you got and know more of the company
D: Industry news, There are some industry news, just look and find the one you need
E: Industry Association, In this way you will find couples of companies
F: Industry shows, there are so many shows for all industries, just find some related to slurry pump, maybe there is a one for you