... steel pipe Applies to oil, aviation, metallurgy, food, water conservancy,electric power, chemical industry,Chemical, chemical fiber, pharmaceutical ... °C level-low temperature and low pressure vessel pipe heat exchanger pipelineASTM A333A333 GR6steel pipe forhigh-pressure boilerUsed in manufacturing by ... gas industry in order to transmit the he oxygen,water and oilAPI 5LA,B,X42,X46,X52,X56, ...