Zhengzhou Zhongyuan Defense Materials Co., Ltd. (ZZDM) was established in 2012. ZZDM mainly focuses on the research, development, and innovative application of ultra-high molecular weight polyethylene(UHMWPE) film materials. Sundless is the brand name of our UHMWPE film carried by ZZDM. Our R&D team continuously develops innovative processes and products to pursue a sustainable future. From ethylene gas to polymer raw material synthesis, oriented by product demand, it conducts research and development of the whole industry chain, and contributes to developing national defense strategy security, bulletproof material industry, and high-performance rope & net industry.