Twofold pipe 70069-A,70069AM(Mastercool,SUA)
Arbalet twofold pipe type 70070 (Mastercool, USA)
Type arc twofold, diam.1 / 4-3 / 4 (Mastercool, USA)
Pipe twofold FC-368a, FC-368M (Favorcool, China)
Arbalet twofold type FC-999 (Favorcool, China)
