Deep water submersion test
no helium detected
Dismantling and reassembly test
no leakage
Surface treatment
no evidence of leakage
Corrosion resistance test
no visible evidence of corrosion
Pneumatic pressure vibration test
without failure
Hydraulic impulse and vibration test
no leakage
Thermal cycle test
no evidence of leakage
Certification
ISO9001:2015,ISO14001,ISO45001,ISO15500,ABS F1387,PED,EAC