document.writeln("Fastener series");
document.writeln("PC board parts series");
document.writeln("Electronic parts");
document.writeln("Nylon wire belt, wiring fixing seat, fastening series, protection ring series");
document.writeln("Rubber foot pad series");
document.writeln("Cable fixing head series");
document.writeln("Cold press terminal and joint, welding terminal series");
document.writeln("Light guide series");
document.writeln("Hexagonal copper column, PC board welding terminal series");
document.writeln("OEM products");