3、接到客户质疑电话，厂家及时派人到现场处理，直到客户满意为止。

The one who buys magnetic password series products of Hong Feng brand, manufacturer will provide him things as follow:
1、Free guidance and training for installation adn use.
2、Guaranty period for three years, products with any quality problems except for man-made will be replaced or refund, free maintenance for the whole life.
3、If receive a dubitable call from our customer,manufacturer will promptly send workers to the scene to solve the problems,till the customer satisfy with our products and service..