Dear sir、 4mm zinc wire. Below is detail index: ZINC .................. 99.995 % MIN MELTING POINT ....... 417 DEGREE CELCIOUS DENSITY .............. 7.12 KG DM CUBE TENSILE STRENGTH ...... 129N MM2 ELONGATION ........... 50-75 % TOLERANCE ........... +0.00 MM (-) 0.050MM LEAD ...................0.002 % MAX CADMIUM ...............0.0008 % MAX TIN ................... 0.0008 % MAX IRON .................. 0.0007 % MAX PLS SEND US YOUR BEST PRICE AND DELIVERY TIME REQUIRED FOR immediatE REQUIREMENT OF 30 TON IN COIL FORM AND TOTAL 120 TON BY END SEP 2005.