Standard API | ASTM | BS | DIN | DNV | GB | ISO | JIS | KS | LR | NF | Others
ASTM
Standard Number
A 199 (Seamless Cold Drawn Intermediate Alloy Steel Hera Exchanger and Condenser Tubes)
Grade T4 T5 T7 T9 T11 T21 T22 T91 [ All grade ]