Xinchanglong is a reputable supplier of recycled HDPE granules, and they use advanced technology and quality control measures to ensure that they produce high-quality products. Their production process includes state-of-the-art equipment, such as shredders, washers, and extruders, to ensure that the plastic waste is processed to the highest standards. They also use quality control measures, such as testing for purity, consistency, and mechanical properties, to ensure that their recycled HDPE granules meet industry standards.