Fitness for Service is considered as the best practice usually employed by the oil industries for determining its condition for continued service.

Fitness for Service is considered as the best practice usually employed by the oil industries for determining its condition for continued service.

Fitness for Service is considered as the best practice usually employed by the oil industries for determining its condition for continued service.

Fitness for Service is considered as the best practice usually employed by the oil industries for determining its condition for continued service.

Fitness for Service is considered as the best practice usually employed by the oil industries for determining its condition for continued service.

Fitness for Service is considered as the best practice usually employed by the oil industries for determining its condition for continued service.