We require a prefabricated steel warehouse with dimensions 20m (length) * 40m (width) * 6m (height). The structure will be used for establishing production facilities of roofing sheets and C-channel components.  

Basic material specifications and structural design details need to be discussed. Color preferences and surface treatment options will be finalized during later negotiation stages.  

Please provide technical proposals and configuration options suitable for industrial manufacturing operations.

We require the following construction materials for roofing project:

1. Roofing Sheet Specifications:
- Material: PPGI (Galvanized) 3 RIB Color Coated
- Thickness: 0.50 mm TCT
- Sheet size: 6200 x 1080mm (Effective profile width 1000mm)
- Profile details: Pitch 250mm, Depth 32mm
- Coating: 18-20 micron top coating, 5 micron back coating
- Standards: AS 1397 with Z80 GSM metallic coating
- Quantity: 740 pieces
- Color: Lagoon Green

2. Complementary Component:
- Ridge Cap: 1.5mm CLR EMB 50MCRN -3.6m length
- Must match main roofing profile
- Color: Lagoon Green

Additional Requirements:
- Material tensile strength: 240 MPA
- 1% alloy tolerance variation acceptable
- Galvanized purlins installation at 1450mm centers
- 15-degree roof slope configuration

Please provide:
- Technical specifications compliance confirmation
- MOQ verification
- Competitive pricing
- Production lead time
- Quality certifications

How much is galvanized corrugated roofing iron sheets 30 gauge

Please send me more about the product price.