Founded in 1999, high-tech enterprises, designated supplier of welding materials for national aerospace and other important industries. registered capital 22 million, has passed the ISO9001, ISO14001 and QC080000 certification. Main products are solder paste, solder wire, solder bar, annual production capacity more than 6000 tons.

| Name | Lead-free solder wire |
| Material | Tin |
| Brand | ZhongShi Metals |
| Alloy | Sn-3.0Ag-0.5Cu |
| Flux content | 1.8-2.2%(custom made) |
| Melting point | 217-221ºC |
| Diameter | 0.2-3.0mm(custom made) |
| Working temperature | 380+/-20ºC |
| Weight | 500g/roll(custom made) |
| Use | Suitable for common electronic products, electronic electrical products, also suitable for general industrial electrical welding. |
| Feature | Good welding performance/Performance of the temperature/Less residue, shinny and clean solder spot. |
| Place of origin | Dongguan,Guangdong |
| Welding method | manual welding, automatic soldering |

Tin-lead solder wire

Solder paste

Solder bar

Other solder products

Product Parameters
| Type | Ingredient(WT%) | Melting point(ºC) | Density (g/cm3) | Use | Work(ºC) |
| Tin-Lead products | Sn63Pb37 | 183 | 8.4 | Suitable for demanding circuit boards, such as: high-precision instruments, electronics industry, micro-technology, aviation industry and other products welding | 340±20 |
| Sn60Pb40 | 183-190 | 8.5 | 340±20 | ||
| Sn55Pb45 | 183-203 | 8.7 | 350±20 | ||
| Sn50Pb50 | 183-215 | 8.9 | Applicable to the requirements of ordinary circuit boards, such as: home appliances, electrical instrumentation, automotive electronics, hardware products and other products welding | 350±20 | |
| Sn45Pb55 | 183-227 | 9.1 | 360±20 | ||
| Sn40Pb60 | 183-238 | 9.3 | 370±20 | ||
| Sn35Pb65 | 183-248 | 9.5 | 370±20 | ||
| Sn30Pb70 | 183-258 | 9.7 | Suitable for relatively low requirements of the circuit board, such as: hardware equipment, automotive water tank lighting bulbs, cable connectors and other products welding | 380±20 | |
| Sn25Pb75 | 183-266 | 9.9 | 400±20 | ||
| Sn20Pb80 | 183-279 | 10.1 | 420±20 | ||
| Lead-free products | Sn99.3Cu0.7 | 227 | 7.4 | Applicable to high-end electronic products, export quality of electronic, electrical industrial products | 380±20 |
| Sn99Ag0.3Cu0.7 | 217-221 | 7.37 | 380±20 | ||
| Sn96.5Ag3.0Cu0.5 | 217-221 | 7.37 | 380±20 | ||
| Sn95Sb5 | 245 | 7.39 | Suitable for welding, need to pass high pressure test or aging test under high temperature | 380±20 | |
| Sn99.95 | 232 | 7.41 | Applicable to all kinds of circuit board plating and used in tin furnaces with excessive copper to reduce copper content | 285±10 | |
| Sn42Bi58 | 138 | 8.5 | Thermal fuses for thermal fuses, thermal protectors, thermal fuses | 230±20 |
Company Exhibition 








Audited Supplier










