Our main company mainly provides precious metal extraction overall solutions, including process design, equipment manufacturing and installation, commissioning and production, staff training. It mainly includes: process design of hydrometallurgy of non-ferrous metals; process design of waste treatment containing precious metals; process design of waste battery treatment; process design of waste water and waste treatment; design and manufacture of extraction equipment; design and manufacture of oil removal system; design and manufacture of PPH / HDPE spiral wound tank and reaction tank; design and manufacture of mixing system; design and manufacture of electrical control system; waste water treatment Design and manufacture of gas treatment equipment.