Shandong Zhongzheng Steel pipe Manufacturing CO., LTD is a large seamless steel pipe manufacturing enterprise. It was founded in 2006 with 600 thousand ton of designed and manufactured and 25 hundred million sales income per year.

Now we introduce our product as follows.

Product One:
(1). Product Name: Seamless Carbon Steel Pipe
(2). Brand: Zhongzheng Steel Pipe ( By ourself )
(3). Specification:
OD 21. 3mm - 355. 6mm ( 1/2'' - 14'')
(4) Standard;

ASTM A106 GR B, ASTM A53 GR B
SAE1020 SAE1045
JIS G4051 S20C JIS G4051 S45C
JIS G3454 STPG370 JIS 3454 STPG42
DIN ST 45-8 DIN ST 52
(5) Tolerate:
OD +1% / -1%
Thickness +12. 5% / -10%
lengh 13mm

Product Two:
(1). Product Name: API 5L X42 X52 X60 X70 and 5CT J55 K55 N80
(2). Brand: Zhongzheng Steel Pipe ( OEM BLANT)
(3). Specification:
OD 60. 3mm - 558. 8mm ( 2'' - 22'' )
The max lengh 13M

(4) Standard
API 5L X42 X52 X60 X70& 5CT J55 K55 N80
(5) Technics: hot rolled.
(6) Packing: Plastic Caps and mark on the pipe