Automatic control technology for the parison wall-thickness of plastics blow-extrusion container is one of the key technology for the quality of the product.
在中空塑料容器的挤出吹塑成形工艺中，型坯壁厚控制技术是关系产品质量的关键技术之一。
The plastics-steel combination flame-retardant barn ventilator has the advantages that: first, the plastic container has a plurality of forming changes, high hole rate and good ventilation;
本实用新型具有以 下优点：一是塑料的器体成型变化多，开孔率高，通气性好；
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