Welmech Engineering Company [Pvt.] Ltd. Manufactures Fully Automated Alkaline Washing Machine. Welmech Engineering Company [Pvt.] Ltd. Is an ISO 9001 certified company. Durable and cost effective in nature, this heat treatment furnace has reliable controls. Fully Automated Alkaline Washing Machine features an easy maintenance attribute and is fully automated through PLC control with report generation. Fully Automated Alkaline Washing Machine is used in pre-washing and post-washing.