... 0.1-6Mpa 3.Temp:-196~700 deg.C 4.Standard:GB/T12777-2008 Stainless steel bellow expansion joint/bellow ... bolts to both ends of the flange togetherFlange connection standard adapt GB standard as to other standards, can be explain. Level ... -1500Lbsconsult standardAISI,ASME,GB/T14525-1999 or GB/T12777-2008 national standardmaterialcarbon steel , stainless steel , alloy steel , low-temperature steel ...