Refrigerated Containers reefers Time Node Control PTI and pre cooling: Shipping companies generally require 4 to 8 hours for PTI and 8 to 12 hours for pre cooling. Advance arrangements are necessary to ensure sufficient time. • Free storage period and free container rental: Generally, the free storage period for shipping companies is 3 days (including 3 days before customs clearance), and the free container rental period is also 3 days. Special attention should be paid to ensuring that the container return time does not exceed the free storage period. • Cut off time: Reserve sufficient time for customs clearance and emergency response. If the customer is clearing customs for general trade in Shenzhen, they need to reserve two to three days for customs clearance. Refrigerated Containers reefers Temperature and Ventilation Control Temperature regulation: Set an appropriate temperature range according to the demand of the goods. Generally, frozen goods (below 0 ° C…