Tristar Mechanical Limited – Gold Sponsor of the NLCSA’s upcoming Conference Jess Owens2022-11-04T13:47:03-02:30January 17, 2018|2018, Announcements|0 Comments The NLCSA is pleased to welcome Tristar Mechanical Limited as a Gold Sponsor of our upcoming Health and Safety Conference on Thursday, April 19, 2018, at Cineplex, Avalon Mall.