Buy Offer - Rubber Raw Materials

Seeking for a supplier of rubber
we are a belarusian manufacturing company “koroleva ognya”. we are seeking for the partner to deal with.
currently, our company tries to find a rubber supplier. we need two types of rubber. we have found that you are a producer of synthetic rubber. we wonder if you produce the rubber, which conforms to the following physical specifications:
1. synthetic rubber
sodium butadiene rubber
butadiene groups content 40
ductility 0.36-0.45 per unit
tensile strength 9.8 mpa
percent elongation 400%
viscosity ?
2. synthetic rubber
chloroprene rubber (naireat)
viscosity 40-50 muni
percent elongation 300%
tensile strength 18 mpa
if you produce such a rubber, we will be glad to get contact with you for further information.
we would appreciate if you could answer asap.