Limestone Quarry Plant

One of the Top 500 enterprises in China foreign trade

QCCO was approved as a member of “China Association for Contracting Projects Abroad “and granted a membership certificate on Sep 28,2005; “Credibility Rating AAA certificate in Foreign Trade” was granted to QCCO by China Shippers’ Association


ASTM A106 GRB carbon steel pipe

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 carbon steel pipe 

(1). Carbon seamless steel pipe ASTM A106 GREB /ASTM A53 GRB 
(2).OD :21.3 mm - 355.6mm 
(3).India ,Iran

Carbon steel pipe

(1).Product Name : Carbon Seamless Steel Pipe    


(2). Brand : Zhongzheng Steel Pipe  ( By ourself )




       OD 21.3mm - 355.6mm ( 1/2'' -  14'')


(4) Standard ;


       ASTM A106 GR B ,        ASTM A53 GR B


       SAE1020                       SAE1045

 Steel pipe |

Seamless steel pipe|
Carbon steel pipe|

       JIS G4051 S20C            JIS G4051 S45C

Stainless steel pipe|
Seamless pipe | 

API steel pipe|       JIS G3454 STPG370      JIS 3454 STPG42


       DIN ST 45-8                   DIN ST 42-2      

(5)  Technics : Cold draw and hot rolled .


(6)  packing : Paint Varnish Coating , Plastic Caps and mark on the pipe



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