1.good material 2.durable ,good function. 3.high quality by precision machining 4.flexible production and competitve price 1.materialwolfram95,972.processpowder metallurgy and cnc3.characterhigh density.4.strengthsmall order,and perfect logistics service5.outlookdeburrs,degrease,ultrasonic cleaning,human based-r6.packingsmall polywooden box