1.The shell is made from high aluminum or high polymer material in order to perfect protect
instrument from damage and extend use life.
2.Center rod is made from imported material, high accuracy and durable resistance.
3.Pointer slider is outside structure, its friction can be balance well and easy to be adjusted so that we can make sure that the instrument is accurate. Compared with other suppliers in the line of business, the product is more accuracy, good quality, and best price and longer use life.
