Folding variant lightweight structure and pleated sandwich structure using same
Formula of low-carbon environment-friendly full-bio-based semi-rigid polyurethane foam
Glass fiber board, preparation method and automobile front cover outer board
Heat-resistant arc-shaped automobile wheel fender and preparation method thereof
Heat-sealable aerostat main capsule material and preparation method thereof
High-buoyancy and high-elasticity life buoy and preparation method thereof
High-resilience positive membrane PVC (polyvinyl chloride) and preparation method thereof
High-stability composite automobile front carpet assembly and production method thereof
High-strength life buoy and preparation method thereof
High-strength polyurethane composite board as well as preparation method and application thereof