张超摄（中经视觉） 12月19日，装载着3200吨进口磷矿石的货物专列，从山东港口烟台港龙口港区发车，将经德龙烟铁路直达位于山西长治的复合肥加工企业，标志着山东省 首条进口磷矿海铁联运班列线路开通，进一步保障了沿黄流域农资生产供应链稳定畅通。 （来源：经济日报） 转自：经济日报 ...

Group 1 - The article emphasizes the importance of ensuring production safety and product quality for drip irrigation tape manufacturers during the resumption of operations [1] - The local market supervision authority has initiated comprehensive inspections of the production enterprises to establish a robust quality control system [1] Group 2 - Inspections focus on the raw material quality, including compliance checks of polyethylene resin and prevention of substandard materials [1] - Key production parameters such as temperature and speed settings in the granulation process are being monitored to ensure adherence to production standards [1] - Random sampling of finished granules is conducted to assess quality indicators like color, uniformity, and melt flow rate [1] Group 3 - Safety regulations are being enforced alongside production checks, including the assessment of ventilation and dust removal systems [1] - Employee training records are reviewed to ensure staff are knowledgeable about safety procedures and emergency response [1] Group 4 - Legal awareness is being promoted among manufacturers regarding the direct impact of granulation quality on the performance of drip irrigation tapes [2] - The local authority is reinforcing the importance of adhering to the Product Quality Law and encouraging companies to take responsibility for quality control [2] - Future efforts will focus on ongoing monitoring and support for agricultural product manufacturers to safeguard farmers' rights [2]