Home / Standards / GBT 3480.1-2019 GBT 3480.1-2019 Calculation of load capacity of spur and helical gears — Part 1: Basic principles, introduction and general influence factors 直齿轮和斜齿轮承载能力计算 第1部分:基本原理、概述及通用影响系数 Standard Type GBT ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A