I would like to inform about demand of customers per month. The customer uses the belt approximately 10 PCs/model/month and keep a safety stock 10 pieces/model.
For the belt to test. The customer want to test 4 pieces/ machine, They will check the running of the machine and the transmission belt,effectively than belt used.
The customer request test B 57 = 4 Pcs/machine A 50 = 4 Pcs/machine.
I inform customers that we will provide the belt of 3 numbers per test. such as BX56 BX57 BX58,AX49,AX50,AX51
Therefore, you should prepare a belt 4 pieces per model.