Surface finishing: Black, hot-dipped and electrical galvanized malleable iron. 
Shape: Reducing ribs (optional). 

Type: Casting Elbow, tee, cross, reducer, cap etc. 
High quality and competitive price 

America STANDARD 
MATERIALS: ASTM A-197, ASTM A47 
DIMENSIONS: ASME B16.3, 
THREADS: ANSI B1.20.1 
1/4 inch--6 inch 

Other standards 
 DIN standard and British standard: