Vde Injection Extension Bar,En60900 Approved Extension Bar,Vde/Gs Certificate Extension Bar,1000V Injection Extension Bar Shanghai Countool In't Trading Co.,ltd , https://www.countool.com The overall error measurement of the gear section is a new technology developed in recent years. By measuring the overall error of the gear section, the overall error curve of the gear section can be drawn. This curve can not only reflect the tangential comprehensive error of each part of the gear, the comprehensive error of one tooth tangential direction, the pitch deviation, the pitch cumulative error, the tooth profile error and the base section deviation, but also intuitively reflect the interconnection of these errors. .