What kind of the test we do for the cast iron pipes and fititngs before delivery ?

- Nov 01, 2018-

What kind of the test we do for the cast iron pipes and fititngs before delivery ?

1 chemical content test 

2 water pressure test 

3 ring crush test 

4 Tensile test

5 Hardness test 

6 Salt spray test

7 water circulation test