HOW CONTOUR SURVEY CAN SAVE YOU TIME, STRESS, AND MONEY.

Release the clamp screw of your instrument, maintain the instrument in the proper hand, and fix it to the tripod by rotating only the lessen portion Together with the remaining hand. Tighten the screws with the instrument firmly.আমরা সারা বাংলাদেশে আমাদের সার্ভিস প্রদান কর�