Namely, the concave and convex slot board. After the joint of the male and female grooves with a standard width of 1.12m, fixed with rivets, the middle of the joint has a filling port, which needs to be filled with black and white materials for foam filling, suitable for cold storage with high requirements of cold preservation.
Namely, the concave and convex slot board. After the joint of the male and female grooves with a standard width of 1.12m, fixed with rivets, the middle of the joint has a filling port, which needs to be filled with black and white materials for foam filling, suitable for cold storage with high requirements of cold preservation.
