Profile: MJR Corporations specializes in offering marine engines, radars & steering system and solar water heaters. Our solar energy water heaters are capable of heating at any temperature without any hitch. The water heaters are available in different models. Our marine power engines are strong and really long lasting. Our solar energy water heaters are capable of heating at any temperature without any hitch. Our solar energy water heaters are available in loads of models and designs as per the requirements.