The color of the sliding tray should be brown paper. Different paperboards such as kraft paper and cattle cardboard can be used according to customer
requirements (if there are special requirements, the supplier and the buyer agree). The surface of the slip plate is smooth, flat and firm, and the paper has no
wrinkles, no penetration, no blistering, no degumming, no cracks, no holes, no spots, no stains (oil, water, streaks, sticky marks). Angle, no mechanical damage.