Factory Direct Price Good Sealing Durable Fabric PVC Mechanical Dock Shelter. Automatic Rolling Operation: Features automatic opening and closing with retractable frame structure for seamless truck docking. Multiple Dock Shelter Types: Available in Mechanical, Insulated Sponge, and Inflatable variants to suit different logistics needs. Customizable Color and Size: Color is customizable and non-standard sizes can be processed according to specific customer requirements. Comprehensive Certifications: Certified with TUV, CCC, ISO9001, RoHS, and CE for global compliance and safety standards. High Production Capacity: Manufacturing capacity of 1500 sets per month ensures fast delivery and fulfillment. OEM and ODM Services: Full customization options available including customization from samples, designs, and flexible adjustments. 24-Hour Technical Support: Professional English-speaking staff available 24 hours a day for inquiries and after-sales service.