Fetch values for field values in one table which is not available in the other table

Hi,

So my data looks like this:

Table1 (T1):-

custid, month

ABC, sep-20

XYZ, apr-20

Table2 (T2):-

custid, month, value

ABC, sep-20, 80

ABC, dec-20, 70

XYZ, apr-20, 50

XYZ, may-20, 40

I'd like to retrieve both the values from T2 when

1. customer ABC is filtered (based on T1.custid)

2. Timeperiod from Jan'20 to Dec'20 (based on T1.date)

Specific use case is to put the retrieved values in a chart.

Final table (T3):

Filter selection - custid= ABC, timeperiod = Jan'20-Dec'20

custid, month, value

ABC, sep-20, 80

ABC, dec-20, 70

I'd like your help in solving this problem. Thanks in advance!