A，The products performance parameters and respective tolerances shall be in accordance with the regulation concerning the safety of sea transport items of CCS,ABS,BV,LR,DNV,RINA,KR,RS,NK, etc Bureau of Shipping.

B，The product  certify by CCS,ABS,BV,LR,DNV,RINA,KR,RS,NK etc,Bureau of Shipping.survey certify and tests.