Flanges:

Standards as:

DIN EN 1092-1,

ISO7005-1,

ANSI B16.5,

ANSI B16.47,

HG series, etc. 

Material: A-St 37.OS, AISI 304, AISI 316, Alloy Steel, Carbon Steel       

Packing: Cartons                                                                                                                            Data sheet