CONFIRM TO AMERICAN STANDARD：ANSI/ASTM A-197,BRITISH STANDARD：ISO5922,DIN STANDARD：DIN 1692.

MALLEABLE IRON FITTING WITH GOOD ASSORTMENT OF MODELS, SURFACE TREATMENT TO BE BLACK, GALVANIZED & EPOXY PAINTED,FULLY POLISHED， OUR FITTINGS CAN BE WIDELY USDED IN VARIOUS PIPE LINES TO CONVEY GAS,WATER,OIL AND SO ON.