www.bjyact.com.cn
抗震支架厂家_抗震阻尼器_阻尼器厂家-北京永安长泰科技有限公司
北京永安长泰科技有限公司主要致力于研发并生产黏滞阻尼器、调谐质量阻尼器、屈曲约束支撑、金属屈服型阻尼器以及隔震橡胶支座、抗震支吊架等产品。
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