Zhongjingtai building materials has a pre-sales working group composed of several people. They have rich experience and are full of enthusiasm for their work. They can respond quickly and give feedback in time to problems in e-mail, telephone or social software. Usually, through the following contact information, you can ensure that you are online 7x12 hours, which means that all your questions, whether they are permeable bricks, wall materials, color steel plates or repair mortar, can be answered within 24-48 hours