here is a email sample, Normally the PCB suppier can start to produce pcb supplier,pcb service,electronic pcb, only follow this email directly
Our company is:
Our address is:
Contact:
Tel:
*Our requirements:
*1. Matrial: (FR4, CEM-1,CEM-3 Aluminum, Copper, High frequency..., Normal is Fr4)
2. Layer: (1, 2, 4, 6, 8, 10..., Normal is 2 or 4, it is also showed in the gerber)
3. Dimensions: (10cm*20cm follow the real size, it is also showed in the gerber)
* 4. Qantity (1 pcs, 5 pcs, 10 pcs, 20pcs..., follow the real requiremnets)
* 5. Board thickness: (0.4, 0.6, 0.8, 1.0, 1.2, 1.6, 2.0mm..., Normal is 1.6mm or 1.0mm)
* 6. Out layer Copper thickness: (H/H, 1/1, 2/2oz..., Normal is 1/1oz)
7. Inner layer Copper thickness: (H, 1, 2oz..., Normal is 1oz)
* 8. solder mask colour: (gereen, Cold White, Black, Blue, red, Matte black... Normal is green)
* 9. legend colour: ( White, Black, red ..., Normal is White)
* 10. Surface Treatment: (Lead free HASL, HASL with lead, ENIG1u, ENIG2u, Osp, Normal is Lead free HASL )
* 11, Other requiremens: (such as: Dont allow Xout, Half PTH Holes，Carbon Ink, Impedance control, 25um hole copper thickness and so on)
12. Gerber is as attachment: (Normally it is Gerber, PROTEL 99SE, PROTEL DXP, CAM350, ODB+(.TGZ)...format file)
so, if you want to write a pcb supplier,pcb service,electronic pcb order email, that is enough