- U tube, Seamless Stainless Steel tube, OD19.05 Wall thickness 2.11MM, ASTM A312 TP316L, Length12m, Standard:A312
- Stainless Steel Exchange Heat Pipe, OD 16mm Wall thickness 1.2mm, ASTM A312 TP321H , Length 6m, Standard:ANSI B36.19
- Stainless Steel Exchange Heat Pipe, 1in Wall thickness 16 BWG, ASTM A312 TP316L, Length 6m, Standard:ANSI B36.19