ST 37.2 din standard rf blind flange dimensions

Size: DN15 - DN2000 (1/2" - 80"),
Types:  Welding neck,slip on,socket weld,thread,blind,plate,lap joint ,orifice,etc.
Material ASTM A105, ASTM A350 LF1, A350LF2, Q235B, 20#, 16Mn,
ASTM A182 F304, F304L, F316, F316L, F321 etc.
Manufacturing standard: ANSI, JIS, DIN, EN, BS4504,GOST etc.
Face Raised Face (RF),Flat Face(FF), Ring-Type Joint (RTJ),Tongue-and-Groove (T&G),Male-and-Female (M&F)
Surface treatment: Anti Rust Oil, Black Paint Coating, Yellow Paint Coating, Hot Dipped Galvanized, Cold Galvanized, etc.
Packing: plywood case or pallet.
Application Areas:
 .Gas Plants
.Power Plants
.Chemical Plants
.Petroleum Industry
.Metallurgy Industry
.Ship-building Industry
.Construction Industry