Important note: 1. Contain lead tin beads melting point of 183 degrees Celsius. Alloy SN63PB37 (63% tin, 37%lead)2. Do not contain lead tin beads melting point of 217 degrees Celsius. Alloy SN96.5 AG3CUO. 5 (96.5%tin, 3%silver, 0.5%copper)3. Good some tin tin beads and silver content of normal, normal melting point.4. Heating directly with air pressure , pay attention to adjust the temperature of the air pressure , do not need too high a temperature, cause otherwise steel mesh deformation.Direct heating steel net is introduced:Made of imported stainless steel special (304). The thickness of the steel net. The heat can be directly used to heat, stencil is out of shape not easily. With ordinary heat can manually, balls don't need to buy another table.The area of the steel net, BGA chip area matching with can reduce the waste tin ball.Colour: silverMaterial: steelPackage Contents:27 x steel meshes1 set x bracketOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.