Is Huludao sailor 1 year health certificate free?

Huludao seafarers' 1 year health certificate is free. Issue the Certificate of International Travel Health Examination with the seafarers' health certificate issued by the seafarers' occupational health appraisal and medical examination institution. If the health certificate of the crew is missing, the missing items shall be filled up free of charge. Other employees in China who work on internationally accepted means of transport shall be monitored for infectious diseases free of charge with the international seaman's certificate issued by their unit, international seaman's visa of relevant countries, other valid identification certificates and visas.