... flange, socket welding flange, lap joint flange (LJF), welding neck flange (WNF), blind flange, orifice flange, reducing flange, pad type flange, loose hubbed flange, welding plate flange, etc. 2. Flange ... Epoxy coating. 8. Tee Applications: Petroleum, chemicals, water conservancy, electric power, boiler, machinery, gas, construction ... ,102,104,105,111,112,113,121,132,133,134 BS970 070M20 BS4360GR.43A ...