CHENFAN ELECTRIC — DRAWING & RFQ CHECKLIST
Transformer cores / CRGO processing

1. CORE DRAWING
   - PDF or DWG, with window dimensions and limb centres
   - Cross-section: step widths and packet thicknesses
   - Step-lap sequence and number of steps
   - Clamping interfaces, holes and lifting provisions

2. MATERIAL
   - Grade (conventional GOES / Hi-B / laser-scribed)
   - Thickness: 0.18 / 0.20 / 0.23 / 0.27 / 0.30 mm
   - Guaranteed no-load loss or flux density target, if applicable

3. SUPPLY SCOPE
   - Stacked core / SKD / CKD / cut laminations / slit coils
   - Accessories included (clamping frames, banding, insulation)
   - Assembly responsibility split

4. COMMERCIAL
   - Quantity and unit
   - Required production or delivery schedule
   - Incoterm, destination port and country

5. DOCUMENTATION
   - MTC, dimensional report, production photographs
   - Packing records, certificate of conformity
   - Any FAT or inspection requirement

Chenfan Electric · Xiongxian, Hebei, China