Hetai decorative materials plant has successfully produced “ taishan ” brand light steel keel and obtained the certificate of “ patent of utlilty model ” and “ patent of appearance design ” for ceiling keel ( u style seizing type ) 合泰装饰材料厂成功投产“泰山”牌轻钢龙骨，并获得吊顶龙骨（ u型卡式） “新型实用专利”和“外观设计专利”等证书。
2.
Hetai decorative materials plant has successfully produced “ taishan ” brand light steel keel and obtained the certificate of “ patent of utlilty model ” and “ patent of appearance design ” for ceiling keel ( u style seizing type ) 深圳市合泰山建材有限公司成功投产“泰山”牌轻钢龙骨，并获得吊顶龙骨（ u型卡式） “新型实用专利”和“外观设计专利”等证书。
