Curve versine measuring box, is also called string box for railway curve measurement. It is a necessary tool for railway works construction. Curve positive vector measuring box is a regular work in rail line maintenance. In order to facilitate the work of the worker to complete this job, a new line curve positive vector measuring box has been development. Feature Curve versine measuring box is a fine production, it is portable, pocket, and good looking. The box body resistant ABS material for yellow, and easy to operate.

Xiangyang Lianjie Mechanical&Electrical Co.,Ltd. Established in 2013,specialized in designing and manufacturing of the geometry measurement systems for the railway,including digital track gauges,mechanical gauge,rail wear gauge,turnout measurement gauges ect. Our products are China Railway Construction Corporation Limited (CRCC) approved.The products are used by CRCC for all their rail operation. Besides, our products are also being used by major rail operators in America, Australia, Europe and the ASEAN countries.The bitterness of poor quality remains long after the sweetness of low price is forgotten. Our mission is to manufacture high quality rail measurement instruments at a competitive price with reliable services to our clients in order to help them to maintain & operate a safe railway system.