CTE中国玩具展是玩具综合贸易展会，每年10月上海举办，云集30个国家和地区、国内20大产区优秀品牌同台展示，吸引130多个国家和地区近10万专业买家到场，交易、交流、交友！...

Tungsten copper rod CTE (Coefficient of Thermal Expansion) represents the variation of length by temperature changes under constant pressure....