Yes, I have been researching for some time. Indonesia does not have car engine manufacturing and imports kits. Indonesia makes the transmission and other items except for engine. The outsourced parts are generally engine cast, not simple wires and battery. Engines don't need batteries.
You are not researching enough then. This is one of casting plants in Indonesia to produce steel engine block, the other casting plant is used to produce aluminium based engine.
Satisfied to see the process of making chassis and car body, Liputan6.com moves to the Casting Plant facility of PT Toyota Motor Manufacturing Indonesia at Plant 2 Sunter, North Jakarta. Here the room is so hot.
The remaining material in the form of steel plates used in the manufacture of the frame and body is not discarded, but taken to the Casting Plant and then melted. This material is used to print engine blocks coded 1TR for Kijang Innova and 2TR owned by Fortuner.
After heating to a temperature of 1,500 degrees Celsius, the steel pulp is poured into a printing container. It is said, operators at this level have high skills because it requires more concentration and precision in pouring the steel pulp "dough". Therefore TMMIN does not carelessly place people in this position.
In the process of printing the engine block, TMMIN uses sand material. Why sand, because in addition to heat resistance this material can be melted down and reused. New sand can melt in a temperature of 1,800 degrees Celsius.
In one day, the Casting Plant in Plant 2 Sunter was able to produce 1,000 Kijang Innova and Fortuner engine blocks. Once finished, the engine block is sent to Plant 1 for finishing.
The outside and inside of the engine block are removed by 2 millimeters so that the surface is smooth and does not leave remnants of mold.
The engine that have been assembled are tested for their abilities. In the process of testing the time set is not long. This engine is not only to meet domestic needs but also exported to 70 destination countries.
The engines to be exported are wrapped in plastic containers and then packed in special packages. For the domestic market this engine is sent to the Karawang factory to be assembled and become a whole car.
https://www.liputan6.com/otomotif/read/2415761/melongok-pembuatan-mesin-mobil-toyota
Indonesia has parts manufacturing which export parts of turbines which are not critical. Indonesia can't manufacture turbine blades. It is just like Turkey manufacturing part of F35 fuselage and exporting to USA. That does not mean Turkey can actually manufacture F35.
Lithium battery is not yet started in Indonesia. It is only planned.
Yes, we manufacture turbine components for large turbine and export it worldwide but Indonesia also design its own small turbine engine and manufacture it inside the country.
Some info about NTP
PT Nusantara Turbin Dan Propulsi (NTP) is a trusted excellence center leading in South East Asia in the field of engineering, maintenance, repair and overhaul of gas turbines and rotating equipment. Since the early establishment by the name of Universal Maintenance Center (UMC) a division of PT IPTN, NTP had been projected as a business of engineering, maintenance, repair and overhaul in the field of turbines and rotating equipment.
https://recruitment.umcntp.co.id/
NTP is actually a subsidiary of PT IPTN (change name into PT Dirgantara Indonesia-our aerospace company) that focus on turbine engine.
Lithium battery is not yet started in Indonesia. It is only planned.
So what is it actually ?
Electric Vehicle
The alternative vehicle is created for energy efficiency. To encourage its realization, Nipress brings solution particularly by means of the electric car and motorcycle battery. NS Lithium is designed for the green vehicle, with patented active material formula. At the end of the day, it becomes proof of support to the implementation of environmentally-friendly technology.
Various types of electric vehicle batteries from Nipress:
NS Lithium
NS Lithium Battery from Nipress provides high
energy and power supply
http://nipress.com/en/products-automobile/electric-vehicle/
This local company also provide battery for many industries, not only for automotive.