We have 26 steps of process during producing the malleable iron pipe fittings ,over 6 steps of checking .
Firstly : Checking the scrap steel , the wP content should not be very high , the wP in malleable cast iron should be lower than 0.1% . If it is very high , the malleable cast iron will break easily .
Secondly: Examing rough cast
Thirdly: Checked the cooked rough
Fourth: hot galvanized testing
Fifth: Destructive testing
Sixth: check the products
We do this just to make sure the quality of the products are good .
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Post time: Oct-11-2017