Jiangsu Sulong Eco-Technologies Co., Ltd. is a National High-Tech Enterprise and a provincial-level "Specialized, Refined, Unique & Innovative" SME. We deliver 100% in-house, automated production of high-grade composite polymer mining & industrial ventilation ducts (PVC/PE/TPU/TPO), with all processes self-produced and no outsourced manufacturing. Equipped with industry-leading seamless one-piece forming technology, our products feature tensile strength up to 4300N and carry internationally recognized certifications including ISO 9001, ISO 14001, ISO 45001, EU ATEX, CE, US NFPA 701, as well as test reports certified by Australian NATA laboratories. We are a long-term strategic supplier for top global mining enterprises including Zijin Mining and JCHX Mining, supporting their mining projects worldwide.