heat exchanger for drying coffee

Technical requirements
1.the radiator is made of seamless carbon steel tube
GB8163 of f18X2.0-38mm with extruded aluminium fin.
2.surface tube NO:31,row NO:3,total tube NO:93
3.design pressure:1.5MPa,design temperature:300
4.connector:DN40(Ø45 connecting tube)
5.material:all is made of carbon steel tube
except fin is aluminium
6.the radiator is made of 2 flow pathes
7.making standard:GB/T14296-93

heat exchanger for drying coffee