机械零件，球轴承和非标轴承，包塑轴承，焊接加工组装件，精密数控加工组装件，不锈钢轴承和零件，滑轮及滑轮组件。

Mechanical parts, ball bearings and non-standard bearings, plastic coated bearings, welding and machining assembly components, precision CNC machining assembly components, stainless steel bearings and parts, pulleys and pulley components.