ICS 39.060CCS Y 88团体标准T/SZS 4090—2024危地马拉翡翠分类与命名Classification and nomenclature of jade from guatemala2024-11-01 发布2024-11-01 实施深圳市深圳标准促进会发布目 次前言................................................................................. II1 范围............................................................................... 1...
