Hebei Xubing International Trade adopts the "three-stage drying method": Natural shade drying: placed in a constant temperature and humidity shade drying room for 8-12 months, slowly releasing the internal stress of the wood; Low temperature kiln drying: treated with 35 ℃ low-temperature circulating air circulation to avoid high temperature causing wood fiber breakage; Balanced shaping: Let it stand in an environment of 20 ℃± 2 ℃ and 50% ± 5% humidity for 30 days to ensure stable moisture content. Each batch of wood needs to be randomly inspected by a high-frequency moisture content detector, with an error not exceeding ± 0.5%, to ensure that the walnut coffin can maintain structural stability in extreme environments and eliminate the risk of deformation and cracking. The cutting process is carried out in collaboration with a CNC band saw and a laser positioning device, accurately cutting according to the dimensions of the coffin design, with an error controlled within ± 0.3mm. The splicing process adopts the principle of "same pattern, same color, same density". Hebei Xubing International Trade has created a unique "three mortise and tenon+dovetail lock" structure, with a tenon width and depth error of no more than 0.15mm. The bonding strength has been increased by 50% compared to traditional techniques, making the load-bearing capacity of walnut coffins over 800kg, and the stability far exceeds industry standards. Hebei Xubing International Trade adheres to the principle of "millimeter level precision and zero defect delivery", deeply integrating traditional woodworking wisdom with modern technology to create walnut coffins that are durable, artistic, and environmentally friendly. From raw materials to finished products, every process embodies reverence for life and the ultimate pursuit of craftsmanship, providing a dignified home for the deceased and conveying eternal comfort to their families. Walnut coffins are not only funeral supplies, but also masterpieces of craftsmanship that carry culture and emotions.