Home / Standards / GBT 3099.4-2021 GBT 3099.4-2021 Fasteners — Terminology — Control, inspection, delivery, acceptance and quality 紧固件术语 控制、检查、交付、接收和质量 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