We are really urgently in need of the following  sizes of the sprockets for 5 designs:All the material is 45# steel. Only chinese supplier please.
Outter dia   gears    target price
198mm         48       2.60$
200mm         48       2.65$    
200--b mm     48       2.65$
206mm         50       2.90$
208mm         50       2.95$
Note that we ahve the five drawings in hand and the deliverytime is very urgently for 1000 pcs for each model. And we will need annually 150000 pcs .we can sign a contract with you if you can amee all these trquirments.Pls if you can not meet thiese requirments, do not reply.