... price, hope we establish long cooperation relation.Nameastm a105 welding neck flangeSize: 1/2"-48"thick: sch40,sch80Pressure ... C, D, EType: integral pipe flange,threaded flange,socket welding flange,welding neckflangeStandard:ISO, GB 12459-2005, ASME B16.9 ( ... Applicable range:Petroleum products, chemicals, natural gas, power plant, machinery, electronics, shipbuilding, PaymentPayment by T/T, 30% as ...