We require 600 chairs meeting specific technical specifications.  
The metal frame must be constructed with hollow oval-shaped pipes (30x15x2.0 mm) featuring finished welding seams, smooth powder-coated surface in black.  
 
Required dimensions:  
- Seat height: 49 cm  
- Total height: 83 cm  
- Seat/backrest width: 49 cm  
- Seat depth: 42 cm  
- Backrest height: 30 cm  
 
Backrest and seat components must have plastic casing with 25mm thick furniture foam (25 kg/m3 density), covered in durable black fabric. Legs require 2mm wall thickness polyethylene plugs with 4mm floor-contact thickness. All joints must use bolt fasteners.

We are seeking an automatic fastener sorting machine capable of processing bolts, nuts, and washers with the following specifications:

1. Sorting Capacity:
- Required throughput in pieces per minute/hour

2. Technical Parameters:
- Supported fastener types and size ranges
- Machine dimensions and power consumption details

3. Customization Options:
- Availability of custom configurations for specific sorting needs

4. Commercial Terms:
- Pricing structure for different configurations
- Production lead time after order confirmation
- Shipping and delivery terms

Please provide detailed technical specifications, product catalog, and commercial offer. Suppliers with experience in industrial fastener sorting solutions preferred.