... Gr1,Gr2,Gr7 3)Standard ASTM B338 4) Confortable pressure Coil heat exchangerCoil heat exchanger Material:Gr1,Gr2,Gr7 under ASTM ... Size: Custom size available SGS Test Report,ISO 9001:20001> Coil heat exchangerItem nameCoil heat exchangerMaterialTi tube in Gr1,Gr2,Gr7SizeCustom ... flows through the tube side and the other flow through outside the tube but inside the shell. Heat gets transferred from ...