1) material: pure copper 2) standard:GB/T 11091-2005 3) specification: ... T 11091 - 2005 standard, this standard specifies the requirements of copper cables, test methods, inspection rules and signs, packaging, transport and ... storage. This standard applies to making products with copper communications cable.Table 1TrademarkSupply StatusSpecifications / mmThicknessWidthTU1,TU2,T2,TP1M ...