I would like to inform about demand of customers per month.
The customer informed that each model of V belt are ordered as safety stock model 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
When put together the belt 4 pieces are transmission and 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 B 56 B57 B58 Therefore, you should prepare a belt 4 pieces per model.