Zibo Yuhai Electronic Ceramic Co., Ltd.
In 1986, participated in the formulation of the CB1125~1128-86 ministerial standard for general technical conditions of Piezoelectric ceramic materials for underwater acoustics.
In 1988, participated in the formulation of the "Measurement and Calculation Method of Performance Parameters of Underwater Acoustic Practical Piezoelectric Ceramic Components" CB1194-88 standard.
In 1993, participated the formulation of the CB1218-93 ministerial standard of commonly used piezoelectric ceramic components for underwater acoustics.
In 2004, Participated in the formulation of Dielectric Filters Part 1: General Specification SJIEC61337-1:2004, Dielectric Filters Part 2: Guidelines for UseSJIEC61337-2:2004 industry standard.
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