Flexible, Heatproof & Reinforced nitrogen hose - Alibaba.com
Flexible PTFE pipe argon and nitrogen gas cylinder filling hose Super high temperature endurance,up to 500 o F (260 o C), very high pressure endurance, really 304 or 316 stainless steel,nonstick. And compare with the other plastics, it's much higher chemical stable, much higher and lower temperature endurance, higher pressure resistance.
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