... forlow temperatureApply to-45 °C ~ 195 °C level-low temperature and low pressure vessel pipe heat exchanger pipelineASTM A333A333 GR6steel pipe ... structure, engineering scaffolds, mechanicalASTM A53A53 Bpipeline steel pipeUsed in oil and natural gas industry in order to transmit the he oxygen,water ... and oilAPI 5LA,B,X42,X46,X52,X56,X60,X65,X70, ...