... material mixed A) Our finned tube included bellowing materials:1) Aluminum extruded fin tube, base material is carbon ... C70600, C71500, C70400 and Brass C44300, C687002) L/LL/KL fin tube3) HF ERW fin tubes ... , C70400 and Brass C44300, C687004) Economizer fin tube, in material of carbon steel SA179, or stainless ... minisite.productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); finned tube