... : BSI certificate 2. effect:Seamless ferritic alloy-steel pipe for high-temperature service Quick details:Standard: BS, GB, DIN, ASTMOuter Diameter ... P12 P91 Brand:TPCO,BAOSTEEL,TISCOSeamless ferritic alloy-steel pipefor high-temperature service1) Pipe Diameter: 8-1219 2) Thickness: 0.5mm ... per customer's requirement7) Packing: Bundles or seaworthy wooden cases High Pressure Alloy Pipe A335 P9