Is the questioner asking, "Is the crab trade reliable"? Yes, it is. The formal e-commerce platform or brand stores for crab trading, merchants have the credibility to protect, and will be the necessary inspection and quarantine of the product, you can ensure that you can buy fresh crabs, but also after-sales protection; however, you need to pay attention to the choice of formal merchants and platforms, pay attention to check the reputation of the business and terms of service, to ensure that their own rights and interests will not be damaged. As long as in the formal channels and after the inspection and quarantine of the business crab trading reliable.