extremely low content of harmful impurity in the chemical components, meet the international environmental protection requirements; stable chemical components, moderate hardness, good squeezing shape, high squeezing usability rate, accurate and stable measurements, suitable to use in the medium and high speed squeezing machine; the cells made of this material are featured with high comprehensive performance, long storage period, even power releasing corrosion and small air swelling.

Stable and uniform in chemical composition, accurate in size, moderate in hardness, well-behaved in extrusion moulding, up to 98% in forming effeciency. The dry cells are long-lasting and the zinc barrels etched uniformly when the zinc calots as negative poles.