1.Product Introduction of Gost 12820-80 Mild Steel Lap Joint Flange
We are focused flange manufacture with 260 workers,30000 m2 workshop,1500 tons monthly output,28 years production experience,delivery time guaranteed,ISO,TUV/PED,DNV,BV,VD-TUV certificated,these are how we keep good quality and competitive prices for global valued customers.We produce Black paint carbon steel flanges A105 S235JR type 13 according to our customer requirements of dimension,surface finished,marking,packing etc.
2.Product Specification of Gost 12820-80 Mild Steel Lap Joint Flange
Manufacturing flanges according to domestic & foreign standards
·GOST 33259-Flanges of fittings for connecting parts of pipelines for nominal pressure up to PN250
·GOST R 54432-Flanges of valves,fittings and pipelines for nominal pressure from PN1 to PN200.
·GOST 12820-80-Steel Flat welded flange on Ru from 0.1to PN2.5Mpa.
·GOST 12821-80-Weld-on steel flanges on Ru from 0.1 to 20Mpa.
·GOST 12821-80-Steel loose flanges on the welded ring on Ru from 0.1 to 2.5Mpa.
European and Western standards
·ANSI/ASME B16.5,ANSI/ASME B16.47
3.Product Qualification of Gost 12820-80 Mild Steel Lap Joint Flange.
We have the laboratory in our factory and a very strict quality control system which promises that goods we produced are always of the best quality.
4.Packing of Gost 12820-80 Mild Steel Lap Joint Flange.
We can supply flanges packed with plywood pallets ,plywood cases or as per customer’s requirements.
Cutomized is also available, such as fumigation wooden pallet & wooden cases.
We export flanges for many years and we have never had any trouble with packing.
Q:Do you have factory?
A: Yes,we have our own forging factory.
Q:How do you keep good quality ?
A:Inspection and trace back No.
Q:Do you have the laboratory in your factory?
A:Yes, we have.