Chengdu Xinkunda Plastic Products Co., Ltd. is located within the Renewable Resources Recycling and Utilization Base in Pengzhou, Chengdu, Sichuan Province. Officially commencing production in May 2021, the company, with a total investment of 80 million yuan, occupies a total area of 95 mu (approximately 16 acres), and boasts an annual production capacity of 20,000 tons. It is a modern enterprise with a modern business model. Production Process: Our company integrates the recycling, processing, manufacturing, and sales of new and recycled PP and PPR materials. We primarily produce and research and develop various types of double-resistant PP sheets, PP air ducts, PP welding rods, various PP equipment accessories, and offer custom PP equipment processing. Our products are primarily sold in the southwest region and throughout China. We utilize advanced technology and equipment to create top-quality products. Product Applications and Market Share: Our products are widely used in industrial equipment, environmental protection equipment, electroplating equipment, anti-corrosion equipment, machinery manufacturing, food processing, and the medical electronics industry. They offer excellent heat and chemical resistance, acid and alkali resistance, UV resistance, aging resistance, reliable electrical insulation, high mechanical strength, and excellent chemical stability. Our recycled plastic sheets are widely used, accounting for a 10% market share in Pengzhou. Recent Development Plans: We will renovate the industrial park, expand our footprint, and strive to increase our market share. Social Benefits: The widespread use of our recycled plastic sheets will not only reduce production costs for companies in the plastic sheet industry, but will also effectively reduce pollution and purify the air.

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PP module rainwater regulation and storage tank system 2025-11-05 The core advantage of applying the PP module rainwater regulation and storage tank system lies in high space utilization, shortened construction period, and reduced whole-life cycle cost. Meanwhile, it features environmental protection and flexible adaptability, which can effectively address urban waterlogging and water resource shortage. 1. High Space Utilization, Suitable for Complex Sites Traditional concrete water storage tanks require large excavation space and have high demands on site shape. The PP module adopts a modular splicing design, which can be flexibly combined according to the actual size of the site, and can even be adapted to irregular plots or narrow underground spaces of buildings. Compared with traditional concrete tanks, the PP module system can save about 30% of the floor area, making it particularly suitable for scenarios with tight land resources such as urban core areas and transportation hubs. 2. High Construction Efficiency, Significantly Shortening the Construction Period PP modules are factory-prefabricated products. On-site operations only involve foundation treatment, module splicing, and earth backfilling, without going through long processes like formwork erection, pouring, and curing required for concrete tanks. Data from practical projects shows that the construction period of the PP module rainwater regulation and storage tank is reduced by more than 50% compared with traditional concrete tanks. It can be put into use quickly, minimizing impacts on surrounding traffic and residents' lives. 3. Low Whole-Life Cycle Cost, Convenient Maintenance In the initial construction stage, the PP module system does not require a large number of labor forces or large-scale equipment, resulting in lower labor and machinery costs. In the later maintenance stage, its detachable and repairable characteristics avoid large-scale excavation during the maintenance of traditional concrete tanks. The PP material is acid and alkali resistant as well as corrosion resistant, with a service life of more than 30 years. It does not need frequent anti-corrosion treatment, and the whole-life cycle cost is about 20% lower than that of traditional concrete tanks. 4. Excellent Environmental Performance, Conforming to Green Building Concepts PP modules are mainly made of recyclable polypropylene materials. The production process generates low carbon emissions, and they can be recycled and reused after being discarded, reducing construction waste pollution. During the rainwater regulation and storage process, the system can be equipped with filtration and disinfection components to purify rainwater. The purified rainwater can be used for green irrigation, road flushing, etc., replacing tap water and saving a large amount of water resources for the project every year. 5. Strong Regulation and Storage Capacity, Effectively Alleviating Urban Waterlogging The gap rate between PP modules is high (about 95%), providing a large water storage capacity, which can quickly collect and temporarily store surface runoff during rainfall. In heavy rain, the system can reduce more than 85% of surface runoff, preventing rainwater from directly pouring into the municipal pipe network, significantly reducing the risk of urban waterlogging and ensuring the normal operation of traffic and residents' lives.

PP Boards Used in the Palace Museum 2025-10-27 PP Boards Used in the Palace Museum After demonstration by the Cultural Heritage Conservation and Science and Technology Department of the Palace Museum, PP boards (polypropylene boards) have become an innovative waterproof material for ancient buildings due to their four core advantages, which perfectly meet the needs of ancient building conservation: First, light weight and low load-bearing pressure – with a density of only 0.91g/cm³ and a weight of less than 2 kg per square meter, they are much lighter than traditional lead backing materials and do not impose additional pressure on the wooden structural beams and frames. Second, excellent waterproof performance – their dense molecular structure results in a water permeability rate of only 0.01%, and they do not deform or degrade even after long-term immersion, solving the problem of "softening when damp" that plagues traditional thatched backing layers. Third, weather resistance and adaptability – they can withstand temperature fluctuations from -20℃ to 120℃, maintaining excellent dimensional stability in the environment of large day-night temperature differences in northern China and avoiding cracks caused by thermal expansion and contraction. Fourth, reversible installation – they can be laid through mechanical fixation without damaging the original thatched backing layer, complying with the "minimum intervention" principle of cultural heritage conservation. As of 2024, the PP board waterproof layer has withstood 16 years of testing and demonstrated outstanding long-term performance: In terms of waterproof performance, annual inspections by the Palace Museum's cultural heritage conservation department show that the leakage rate of the renovated area is zero, and the moisture content of the thatched backing layer has always been controlled within 12% (the safety threshold for wooden structures), completely solving the previous "eaves dripping" problem. In terms of material condition and conservation benefits, the PP boards show no obvious aging or cracking; laser rangefinder tests indicate that the roof flatness error remains within 0.3‰ (comparable to the craftsmanship precision of the mid-Qing Dynasty). The underlying wooden roof boards and beam brackets show no new signs of mildew or insect infestation, and the mid-Qing Dynasty early-stage colored paintings on the inner eaves of the Hall of Supreme Harmony have retained their colors well due to stable humidity. In terms of industry value, this solution has provided a reference for the waterproof renovation of other ancient buildings such as the Summer Palace and Suzhou Gardens, promoting PP boards to become a preferred material for the conservation of historical buildings.

Beijing Workers' Stadium adopting PP boards 2025-10-23 After the renovation of the Beijing Workers' Stadium, the adoption of the PP board system has brought multiple benefits, which are detailed as follows: Reduced Maintenance Costs: The use of the PP board system has cut the stadium's maintenance costs by 70%. Due to PP boards' excellent wear resistance and impact resistance, annual maintenance work such as sanding, painting, or moisture-proof treatment is no longer required, significantly reducing both maintenance expenses and labor costs. Extended Service Life: PP boards feature a stable molecular structure, exceptional weather resistance, and anti-aging properties. With the addition of imported anti-UV formulas, they can ensure no fading or aging under long-term ultraviolet exposure. After the Beijing Workers' Stadium adopted the PP board system, its service life has been extended to over 15 years, a substantial improvement compared to traditional materials. Lawn Protection: The bottom of the PP boards adopts a balanced cross-support structure, which can evenly distribute the applied force. While protecting the ground from damage, it also provides effective protection for the lawn. Its hidden drainage hole design enhances the breathability of the protective boards, preventing the lawn from becoming excessively dry or hot, and helping to maintain the lawn's vitality and appearance. This minimizes the damage to the grass caused by crowd trampling. Easy Installation and Maintenance: The PP boards are designed as independent small pieces, offering greater flexibility and convenience to adapt to venues of various shapes. When encountering uneven ground, they can better fit the surface, avoiding the risk of stepping into empty spaces and ensuring the stability of the entire venue. During later maintenance and replacement, only small areas of boards need to be replaced, making the process convenient and efficient. Additionally, their unique interlocking slot design ensures that the joints remain intact even after repeated folding, preventing damage to the protective boards during the processes of repeated rolling, folding, and splicing. Environmental Sustainability: PP boards are recyclable materials that align with environmental protection concepts. At the end of their service life, they can be recycled and reused, reducing resource waste and environmental impact. Enhanced User Experience: The special surface texture and color of the PP boards can create more spectacular ground light and shadow effects, providing a better visual experience for both spectators and athletes. Meanwhile, their robust performance enables them to withstand the load of large-scale events with tens of thousands of people, ensuring the safety and stability of the venue.

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No. 190, East Section of Mudan North Road, Pengzhou City, Chengdu City, Sichuan Province E-mail: 15882332259@139.com Tel: +8615908186931 Tel: +8615908186931

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