1.40 years experience in forging flange. 2.word-class facilities 3. ... , Socket Welding Flange, Blind Flange, Non-standard flange etc.3. Size 1/2-78 inch (DN15-DN2000)4. Material Carbon Steel ... ,P250GH,C22.8 etc.5. Used forPetroleum, chemical, power, gas, water, line pipe, heat exchanger, shipbuilding, construction, etc.6. Production processraw ...