按工业标准尺寸生产，小型化，组装密度高
Industry standard size,miniature,high density assembly
可靠性高，使用寿命长，防潮性、抗腐蚀性好
High reliability,long life excellentmoistureproof and cauterization
设计灵活,可根据用户要求生产
Free design,producting according to the consumer require
