Recently, Zhong'an combined with an annual output of 350,000 tons of polypropylene equipment has entered the equipment installation stage. Among them, six blending silos of aluminum-magnesium alloy, four packing silos, and two intermediate silos were built in mid-June. Fully expanded. At present, four silos have been built. According to the plan, 12 silos will be completed in mid-October.