Shenyang Sunnyjoint Chemicals Co.,Ltd
Add: No.145 Dongling Road, Shenhe District, Shenyang, Liaoning Province
According to China standard No.: GB/T 11409-2008 -- 3.7, CBS specification of ash testing condition as following：
Sample QTY: 3 gram
Testing twice, the two numbers must be within 0.04%; Their average is the result.