... 36,DIN2505,EtcMaterialCarbon steel(ASTM A105,Q235,A350LF2,A350LF3,Etc)Stainless steel(ASTM A182 F304, F304L,F316,F316L, ... ,F70, A182 F12,F11,F22,F5,F9,F91,Etc)QualificationISO9001:2008 Quality Mangement System Certificate,ISO 14001 Environment ... or as for clients'requirements applicationPetroleum,chemical,machinery,electric power,shipbuilding,papermaking,construction, etcSpecial design available as the ...