This product for percussion ring spanner, divided into 6 and 12 Angle, that is to say can rotate 60 limit and 30 limit. The product for explosion-proof products, explosion-proof level of the world's top standard, we care! Our company specializing in the production of explosion-proof tools, winning many international certification, is widely used in petroleum, chemical and other inflammable and explosive places

The product is divided into beryllium bronze, aluminum bronze, steel, titanium alloy materials。German DIN7444 standard for forging products