... ,electromagnetic shielding and solder float.We specially produces Metal Base Copper-Clad Laminates,and our products have been compiled series with ... .5mm,2.0mm,3.0mm etc.2).Thickness of the copper: 18um,35um,70um,105um,140um..3).Base size: 330mm x ... valueIndexTypical valueIndex Thermal stress(projection welding)(Not etching)288°C(S)A362120312120 Copper peel strength, ≥A1.281.051.211.05 (N/mm ...