Which company should I go to for anti sagging testing? Baijian.com is a collectively owned research institute with CMA and other qualifications recognized by the national metrology certification. It integrates testing, inspection, analysis, testing, technical consulting and other services. It has also been rated as a national high-tech enterprise and can carry out anti sagging testing and other testing projects. Having the national high-tech enterprise certificate and CMA testing qualification certificate, with complete testing instruments, the testing report can be issued within 7-15 days Testing items: Anti sagging testing, etc Testing standard: GB/T 9264-2012 Evaluation of Paint and Varnish Resistance to Flow and Hanging. Testing cycle: Generally, it takes 7 to 15 working days