(1)The risk assessment is not yet carried out for the circumstance when it is overpressure in the fluid pressurized system such as oxygen gas system in welding process of production 2 (M/C A10502), welding machine of Production 1 (M/C 42D1977) and Paint and Baking Oven machine of production 2 where LPG is used (M/C A10601- 1) [Requirement 4.3.1]