A. Material A.1. Manufacturing / Assembly by PERPRO A.1.1 Transformer Rectifier • Manual Tap Setting • Variac Setting • Auto Potential (Constant Voltage/Constant Current) A.1.2. Related Equipment • Current Control Box (S/S & Cast Aluminium) • Bonding Box (S/S & Cast Aluminium) • Junction Box (S/S & Cast Aluminium) • Test Box (Cast Aluminium) A.2. Stockist • Sacrificial System : - Alumunium Anode, - Magnesium Anode, - Zinc Anode, - Ribbon Anode • Impressed Current Anode - MMO Anode, - Fe/Si/CR Anode. • Accessories (Cable XLPE/PVC, Royston Handy Cap, Caldweld Equipment, etc) B. Fields Surveys • Pipe to soil potential • Interference testing • Soil resistivity • Investigation of general corrosion problem • Current requirement testing • CIPS (Close Interval Potential Log Survey) • NDT with measurement of steel thickness C. Engineering Design • Preliminary design • Project cost estimation • Design, development or improvement • Project implementation program and schedule • Detail design and technical specification • Technical clarification D. Installation • Impressed Current System (onshore & offshore installation) • Sacrificial System (include offshore installation) E. Commissioning F. Maintenance G. Underwater Works / Salvage (Underwater welding, Underwater Anode Installation)