Red / Blue/ Yellow/Orange color ring trademark has been used to the inside insert on the box end of the wrench by Chang Loon since 2004
2019.03.27

Red / Blue/ Yellow/Orange color ring trademark has been used to the inside insert on the box end of the wrench by Chang Loon since 2004. Please identify the red /blue/ yellow/orange color ring trademark when purchasing the ratchet wrench products.