low molding technic is used in the production of hollow thin-walled parts with for thermoplastic materials.The Typical products of blow molding are large capacity and the final consumer goods,such as bottles and containers.At present,the most popular materials for blow molding are PE,PP and PVC. Blow molding process consists of two main molding methods:extrusion blow molding and injection blow molding.Through extrusion or injection molding.thermoplastic resin is molded into tube-shaped parison which are instantly(when it is still hot or heat it up to the state of softening)put into  blowing mold.  Then compressed air is blown into it until it expanded and sticked on mould cavity.  After cooling and demolding,hollow products can be finished Calendar printing offers a range of features and attributes. It includes customizable designs, high-quality printing, various sizes and formats, durable materials, vibrant colors, professional layouts, personalized dates, branding options, different binding methods, glossy or matte finishes, and optional extras like hanging hooks or envelopes. With calendar printing, you can create customized calendars that serve as effective marketing tools, gifts, or personal organizers, allowing you to showcase your creativity and stay organized throughout the year. , calendar 2024, calendar printing, calendar printing custom Shenzhen Longyin Printing Packing Co., Ltd. , https://www.longyinprint.com
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