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高低温(wen)剪切试验(yan)机厂家满足(zu)建(jian)筑门窗幕墙用(yong)中空(kong)玻璃弹性(xing)(xing)密封胶-20℃、23℃、60℃、80℃、拉伸粘结性(xing)(xing)试验(yan)