Non-sparking, Non-magnetic Striking Box Wrench made of Beryllium Copper and Aluminium Bronze two material. The special material can avoid rise sparking when toold strike, rub with target in explosive atmosphere or flammble vapours . It wildly used in oil and gas works, petro-chemical plants, mines, pharmacy etc.
The common size from 17mm to 150mm, it forged by large forge machine. The product are sold popular in abroad market, such as America, Japan, Germany, France, England, Singapore, Korea, India etc over 50 countries.