• Rubber Additives PE Square Bottom Valve Bag
    Rubber additives PE square bottom valve bags are square-bottomed packaging bags made of polyethylene material and equipped with a valve. They are specifically designed for materials like rubber additives. The square-bottom structure allows
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  • Bleaching Powder PE Valve Bags with Square Bottom
    They have strong sealing performance, which is good at preventing moisture and leakage. The PE (polyethylene) material itself has excellent waterproof and barrier properties. It can effectively prevent bleaching powder from coming into
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  • Carbon Black PE Valve Bags with Square Bottom
    Carbon black PE valve bags with square bottom are square-bottomed packaging bags made of polyethylene material and equipped with a valve. They are specifically designed according to the characteristics of materials like carbon black.
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  • Moisture-proof PE Block Bottom Valve Bag
    The anti-static performance is outstanding, ensuring safety. Anti-static masterbatches (such as carbon-based conductive materials and permanent antistatic agents) are added to the bag material. The surface resistance is controlled between
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  • Food Grade PE Square Valve Bag
    Food-grade PE square valve bags are square valve-type packaging bags made of polyethylene materials that meet food contact standards. They have a unique square structure. This structure allows them to stand firmly on flat surfaces. It
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  • Heat-sealed PE Square Valve Bag
    Advantages of Heat-Sealing Process: High-frequency heat sealing or heat-sealing machines are used to melt and bond the edges of PE films. The weld strength reaches 30N/15mm (ordinary sewn bags only 15-20N/15mm), eliminating the risk of
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  • PE Square Valve Bags for Agricultural Products
    PE material (with a density of 0.91-0.96g/cm³) itself has a water vapor transmission rate of ≤5g/(m²・24h) (at 23℃, 90% RH). Combined with the heat-sealing process, it can isolate external moisture, preventing grains such as rice and flour
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  • Chemical PE Square Bottom Valve Bag
    These bags make the most of polyethylene's natural ability to resist chemical reactions—especially high-density HDPE and specialized formulas. They can handle long-term contact with strong substances like 30% sulfuric acid, 40% caustic
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