... 4.Corrision resistant 5.ISO9001&UKAS Non sparking Hand tools Ball Head hearing needle,Hearing Needle,Aluminium bronze hearing needle, ... 800mm,900m,1000mm,1200mmThe main products of our company are as follow:Non-sparking tools. They are mainly used in ... flammable and combustible vapors liquilds gas dusts are present, such as petroleum industy,chemical industry, power generation,railroad,and mining ...