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


carbon steel concentric reducer

Concentric reducer; Eccentric reducer.Seamless reducer; Welded reducer.


ANSI B16.9 / 16.28, ASTM A53/A106, API 5L, ASME B36.10M---1996, DIN2605 / 2615 / 2616, JIS
1/2" ~ 48"( Seamless); 16" ~ 72"(Welded)
Wall Thickness
Surface treatment
Transparent oil, rust-proof oil or hot galvanizing.


All of carbon steel pipe fittings made from carbon steel, alloy steel and stainless steel etc., with good quality and pretty competitive price, covering big size elbow, tee, reducer, cap, flange etc with the strength of high pressure and high temperature resistant. Hope to be your kind partner!

carbon steel concentric reducer



Carbon steel reducer


  Other productions:

butt welded and seamless pipe fittings ,steel pipe

such as  tee, cross, cap, bend,

45D/90D/180D LR/SR elbow.


Carbon steel/alloy steel 


Seamless :1/2"~24" DN15~DN600

Welded : 1/2”~72" DN15~DN1800


SCH10~SCH160,STD ,XS ,XXS sch5s, sch20s, sch40s, sch80s,SGP.

Surface treatment:

Transparent oil,

rust-proof black oil

hot/cold galvanized


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