Aluminium guillemin coupling male thread without latch,pipe couplings, rubber coupling

Aluminium guillemin coupling / symmetrical coupling/pipe couplings/rubber coupling /Guillemin coupling Standard:
>> EN14420-8 / NF E29572
Symetrical coupling parts:
>>Male with latch, male without latch, female with latch, female without latch, hose tail with latch, hose tail without latch, cap with latch with chain, male guillemin helicoidale, hose guillemin helicoidale
Thread type:
>>Male thread: EN ISO 228-1, BSP
>>Female thread: EN ISO 228-1, BSP
French coupling seal:
>> NBR black & standard for stainless and aluminium
>> EPDM: White
>>FPM: Green
>> PTFE: White
Guillemin couplng material:
>> Aluminium heat treated
Guillemin coupling sizes:
>> 1-1/2" to 4"