According to the ISO 12944 standard "Paints and Varnishes - Protective Coating Systems for Corrosion Protection of Steel Structures", the corrosive environment is classified into multiple grades:

What is the concept of C5? 

The ordinary marine equipment has reached C3 level. We skipped C4 directly and went straight to C5 - two levels higher than the industry standard. 

Some might ask: Isn't C5-M even better? Yes, C5-M is the marine sub-level below C5, designed for extreme marine environments within 50km offshore. While C5 covers coastal high-salt fog industrial environments, which precisely represents the actual operating conditions of most merchant ships, oil tankers, and chemical vessels.

One machine can meet the nitrogen demand of the entire ship

The marine nitrogen generator of Since Gas is applicable to various ship types such as oil tankers, chemical tankers, LNG ships, LNG dual-fuel ships, PCTC, PSV, FPSO and offshore platforms.