Gun Metal & Brass Ferrules as Per IS :2692 - 1989 Screwed male ends (BSPT) as per IS : 554, Ferrules are supplied in Rough finish.

TESTING :
Testing of Ferrules are done as specification under clause of IS : 2692 hydraulic Test pressures are indicated below :-
Body Test Pressure = 2.0 MPa. Hyd.