Structural system:1) The concrete made of special composite steel plate does not pollute the magnesium liquid, has anti-corrosion structure inside, and has long service life.2) Stainless steel casing and panel, corrosion resistant and high temperature resistant (patent: ZL201430063916.2)3) Quantitative pump instantaneous flow design, maintenance time of more than 30 days (patent: ZL201220249304.8)4) The transmission tube is made of special corrosion-resistant materials, which can be quickly changed, and the maintenance time is more than 30 days (patent: ZL201120347014.2)5) Preheater adopts clamping mechanism to make liquid level control stable and accurate feeding (patent: ZL201420137471.2)6) Anti-blocking magnesium alloy elbow design (patent: ZL201120322157.8)7) Perfect cleaning tool (patent: ZL201120323381.9)