Applicable to the production of 5L-12L oil pots, lubricating oil pots, cooling water tanks and soy sauce pots of various specifications, with optional multi-layer co-extrusion; Optional liquid level line extrusion; According to the size of the product specifications, multi-touch extrusion can be selected; According to the situation of raw materials, JW-DB plate single-station hydraulic screen changing system can be selected; According to customer requirements, online flash removal, online flash transportation and online finished product transportation are selected;