Combination & Joint FittingsChina ASTM B363 Gr. 7 Grade 7 Titanium Lap Joint Stub End for Flange Pipe Fitting, Find details about China Titanium Stub End, Gr. 7 Titanium Stub End from ASTM B363 Gr. 7 Grade 7 Titanium Lap Joint Stub End for Flange Pipe Fitting