Home / Standards / GB/T 6670-1997 GB/T 6670-1997 Determination of resilience of flexible polyurethane foam 软质聚氨醋泡沫塑料回弹性能的测定 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