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


seamless carbon and alloy steel pipe for construction


1) seamless steel pipe 
2) carbon and alloy 
2) ODXWT:70-630X6-35mm 
3) Length:fixed,random

carbon steel pipes with Q195-235

seamless carbon and alloy steel pipe for construction service

Standard &Steel Grade:

GB/T8162-1999:  10#/20# / 45# / 16Mn / 45Mn2 / 27SiMn

GB/T8163-1999: 10#/20# / 45# / 16Mn

GB 3087-1999: 10#/20#

GB/T17396-1998: 45# / 45Mn2 / 27SiMn

EN10210:  S235JRH / S275J0H / S275J2H / S355J0H / S355J2H

EN10297:  E470



ASTM A519:1010 1020 1026

API 5L: B X42 X52 X60

API 5CT: J55 K55 N80-1

Other specifications available according to customers' requirements



OD: 70MM-630MM

WT: 6MM-35MM;

LENGTH: 6-25M (fixed or random length)



1) Construction service

2) Transportation service

3) Low and medium boiler service

4) Mechanical and general engineering purposes

5) Oil transportation

|Reducing Tee| |Concentric Reducer| |Eccentric Reducer| |Pipe Elbow| |Pipe Tee| |Pipe Reducer| |Pipe Cap| |Flange| |Pipe Bend| |Pipe Cross| |Lap Joint| |Pipe Flange| |Flange| |Socket Flange| |Blind flange| |Slip on flange| |Integral Flange| |Weld flange| |Plate Flange| |Threaded Flange| |Loose plate flange| |Orifice Flange| |Spectacle blank


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