Product liability is the liability of those who should be responsible for the damage, since the product was the cause. The reason you want to have the liability is different from that in civil matters, sell or liability for the violation. That is the main traditional trades are in. As a basic principle in relation to contractual liability on the contract. The market environment, buyers, sellers, a relationship that is not complex. Vendors and manufacturers are the same, there is no high-tech or manufacturing conditions.