Grade

PSL1/PSL2

J55/K55/ N80(Q)/L80(1)/L80(13Cr)/T95/P110(CY)

Size

2-3/8"～20"

Thread

YL-1T,YL-2T,YL-2THC&HT,YL-TQ,YL-EX,YL-G2,YL-JC,YL-NF,YL-ST

JFE/Metal One/Baosteel   Authorized Series

Grade

H40/J55/L80-1/9Cr/13Cr/R95/N801/N80Q/C90/T95/P110

and other spcial steel grade

Size

2-3/8"～20"

Thread

YL-FJL,YL-MT,YL-FJ,YL-TS8,YL-TS6