First, freeze the live shrimp for 3 hours, find the 1 foam box (if the air can't add ice, you can add ice by express delivery), and keep it fresh for 48 hours. It is recommended to send SF Airlines, which is about 1 day in big cities in China.

Shrimp swimming is very different from fish. Fish can swim forward by swinging their tail fins. Shrimp has no tail fin like fish, only a tail and many calves. So how does it swim? Shrimp also has its "coup".

Shrimp is a good swimmer and can swim long distances with its legs. When it swims, its swimming feet paddle backward frequently and neatly like wooden paddles, and its body drives forward slowly. When frightened, its abdomen bends and stretches flexibly, its tail strokes down and forward, and it can jump backwards continuously at an extremely fast speed. Some shrimps are not good at swimming, and big lobsters spend most of their time crawling on the sand and stones on the seabed.

The gills of shrimp with respiratory circulation are located in gill chambers formed on both sides of the crustacean, and the gill chambers are communicated with the outside world. Most of the branches are pinnate, with 25 pairs of * * *, which are attached to the chest side wall or the base of the chest limb. The epidermis is extremely thin, and gas exchange occurs when blood flows through gills. The jaw boat in the gill chamber swings constantly, so that fresh water enters from the back and abdomen and flows forward. The circulation system is open.

The heart is a flat polygonal muscle sac located in the pericardial sinus behind the head and chest. There are four pairs of cardiac holes, two in the back, one on both sides of the posterior end and the other on the ventral side of the heart near the posterior end. There are valves that control blood flow.

SF's distribution solution for seafood industry directly hits the distribution pain points of seafood industry from five dimensions: different, fast, wide, fresh and excellent, and ensures the freshness of seafood locks in all directions:

The first is "difference". According to different types of seafood and aquatic products and different sales methods, SF has formulated two differentiated transportation modes, namely, the direct delivery mode which is more suitable for B2C e-commerce and the warehouse dry distribution mode which is more suitable for B2B.

Second, it is "fast", with 55 cargo planes, more than 6000 self-owned vehicles/kloc-0, 60 distribution centers, and integrated transfer points 13 1 each.

Coupled with the logistics network all over the country and the multi-level product selection of SF, SF and SF, the desire of consumers to "eat only the freshest seafood" is fully guaranteed.

The third is "wide". For seafood distribution, SF provides a wider distribution range through full-process monitoring and route optimization. Taking the distribution of fresh and fast-mixing products as an example, Qingdao has more than 200 cold chain lines, which radiate to more than 60 provinces and cities in China such as Beijing, Tianjin, Hebei, Jiangsu, Zhejiang and Shanghai.

The fourth is "fresh". SF adopts customized seafood for different categories of products (such as live fresh, chilled fresh, frozen fresh and dry goods).

Professional packaging design, with food-grade packaging materials and accurate temperature guarantee, to achieve accurate fresh lock; On the outer box provided by SF, there will also be obvious product and origin marks, so that seafood can be transferred to excellent delivery during transshipment.

The fifth is "excellent", whether it is the delivery delay and abnormal temperature in the service process that affect the timely delivery of seafood or even lead to it.