A technical blog by an Indonesian process engineer covering compressor performance, including isentropic efficiency calculations, flow estimation from motor power and pressure, and VFD behaviour of Roots blowers. Each article works through real plant examples and explains the reasoning behind the methods.

Reindustri is a new site covering AI, automation, manufacturing startups and industrial processes, with long-form articles aimed at founders and engineers. The sample issues offer practical explainers on Raspberry Pi hardware choices for industrial use and the realistic costs and constraints of building urban microfactories.

A company blog from a Indonesian cold storage contractor, publishing practical technical guides on compressors, evaporator defrost timers and control panel wiring diagrams. Readers get concrete troubleshooting and equipment-selection advice, though the articles also promote the company's services.

A B2B marketing newsletter from a cold storage construction contractor in Indonesia, publishing technical articles on commissioning, power supply and panel thickness. It aims to win clients by showing practical engineering know-how for cold rooms, freezers and chillers.