steel pipe
(1).We are the bigger manufacturer .
(2).We have API, DNV,BV,SGS certification .
(3).Low price and high q
steel pipe
(1).Product Name : Carbon Seamless 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
API 5L X42&X52 API 5CT J55 & K55
SAE1020 SAE1045
JIS G4051 S20C JIS G4051 S45C
JIS G3454 STPG370 JIS 3454 STPG42
DIN ST 45-8 DIN ST 42-2
API 5L GR B
(5) Technics : Cold draw and hot rolled .
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