Features:
Metal to metal sealing provides leak free service in the vacuum to high pressure range
Precision manufactured gaskets ensure the highest performance
The nut end test hole is easy to conduct leakage testing
Silver plated inner thread of nut
The channel undergoes electrolytic polishing, and its surface roughness can reach Ra0.25 μm (10 μin.)
All sealing surfaces and male threaded ends are protected by plastic caps
Size range: 1/8" to 1" and 6mm to 18mm
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High purity weldes joint 
