We are Cangzhou Longtu Pipeline Equipment Manufacturing Co.,Ltd
We supply ASTM A672 C65 CL13 steel pipe.
We also supply these products  :

LSAW steel pipe
Size range: OD 457mm-1422mm
WT 8mm-50mm
Specifications & Grades:
API 5L (PSL1,PSL2),ASTM A252,ASTM A672,ASTM A671,ISO3183,etc
B,X42,X46,X52,X56,X60,X65,X70,X80,etc

Seamless (SMLS) Steel Pipe
Size range: OD 21.3mm-1473mm
WT 2mm-300mm
Specifications & Grades:
SA-106 Grade B/C, SA-335 P5, P9, P11, P22, P91
SA-333, Grade 1/6 , SA-213/335 T5, T9, T11, T22, T91
API 5LB & X-Grades through X-80
SA-53 Grade B ,A-519 1020 / 1026 ,A-513 Type 5 (DOM)
EN10210-1,EN10216-1,EN10297-1,ASTM A519,etc.

ERW steel pipe
Size range: OD33.4-609.6mm
WT 2mm-30mm
Specifications & Grades:
SA-106 Grade B/C,,API 5LB & X-Grades through X-80

SSAW steel pipe
Size range: OD 219mm-3200mm
WT 5mm-30mm
Specifications & Grades:
EN10217   ASTM SA-106 Grade B/C
API 5LB & X-Grades through X-80, SA-53 Grade B
 
Special steel pipe
Corrosion protection pipe ; Insulated pipeline;
abrasion resistant pipe ,etc.
Pipe Fittings
elbow ; tee; cross; reducer; cap; plug; nipple ;Bend; etc.