... -97 ,ASTMB 441-96 2.YS/T 334-1995 high quality beryllium copper wire With higher strength, hardness and elasticity, more excellent anti ... components and parts, such as diaphragm, diaphragm capsule, ripple tube, spring washer, micro-engine brush and commutator, plug-in connections, switch ... , sea-bottom cable, anti-pressure case, non-sparkling tools, etc. high quality beryllium copper wire