Home / Standards / GB/T 46327-2025 GB/T 46327-2025 Active Neodymium-catalysed butadiene rubber 钕系丁二烯橡胶 Standard Type GBT ICS 83.060 CCS G35 Status 现行 Issue Date 2025-10-05 Implementation 2026-05-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A