Gost 12820-80 Stainless Steel Weld Neck Flange 1)size: 1/2" - 48" 2)service: OEM, design service and buyer label service 3)certificate: ISO9001: 2000, QS-9000 4)standard: DIN, ASME, JPI, ANSI, BS, etcsize 1/2" to 24" ASME B16.5 24"to 80" ASME B16.47 Type WNF, SO, SWF, BL, OF,LF,PL Face RF, FF, MF, MFM, RJ, TG, RTJ, SRF, Pressure Class 150Lbs, 300Lbs, 600Lbs, 900Lbs, 1500Lbs, 2500Lbs, /PN6,PN10,PN16,PN20,PN25,PN40/ Class A, B, C, D, E standard ASME B16.5, ASME B16.47, ASME B16.36,DIN 86341-2000, DIN2505 material Carbon steel(ASTM A105, Q235,A350LF2,A350LF3,) Stainless steel(ASTM A182 F304, F304L,F316,F316L,F321,F347,F310F44F51,A276 S31803, A182, F43, A276 S32750,A705 631,632,A961, A484, Alloy steel(ASTM A694 F42,F46,F52,F56,F60,F65,F70, A182 F12,F11,F22,F5,F9,F91,F1ECT) qualification ISO9001:2008 Quality Mangement System Certificate,ISO 14001 Environment Mangement System Certificate,OHSAS18001 Occupational Health & Safety Mangement System Certificate, acquired the license for manufacturing special pressure Pipline equipments from AQSIQ , passed the Authentication of API and became a member of first – grade supply network of State Power Corporation and China National Petroleum Corporation.We are also qualified the standard material supplier of China National Offshore Oil Corporation and China Petroleum Pipline Bureau.It was recognized by China Classification Society and admitted an associator by EnergyAhead Sources Net of China Petroleum Distribution Electronic Market. packing in wooded cases or pallets,or as for clients'requirements application Petroleum, chemical, machinery, electric power, shipbuilding, papermaking, construction, etc Special design available as the requirement of customer
