1. Main materials for the coffin body: fir wood, plywood (plywood). 2. The main materials of the coffin body must all meet the national environmental protection requirements. 3.The side panels of the coffin body are made of 13 mm thick plywood, and the bottom panel is made of 9 mm thick plywood. Three-layer round cover. 4. Specifications of the wooden square for the coffin body: The upper wooden square is 50 mm wide and 20 mm thick. The lower wooden square is 60 mm wide and 25 mm thick. 5. The product can bear A load of over 200 kilograms. 6. The product was internally loaded with 150 kg and dropped from a height of 50 CM without any damage to its structure. 7. The overall structure of the product remains undamaged when subjected to external force impact (with a thrust of 50 kg and maintained for 1 hour, the coffin structure remains
