Tianjin Chawr Automation Technologies Co., Ltd. was set up in Tianjin by automation experts. Chawr provide integrated assembly & testing solutions for electrical industryautomotive industry. Chawr is specialist in automation screwing system,automation testing system,automation assembly system . We, Tianjin Chawr Automation, have one set of perfect aftersales service system, it will help our customer to get the best, quickly, efficient service. Response: 1. for all customers, we will response in 48 hours 2. for the local customers in Tianjin, the peoples republic of china, we shorten the response duration to 12 hours. It seems unbelievable, but it is true.