Q5: What surface treatments do you offer? How do you ensure corrosion resistance?
A5: We offer various surface treatments such as anodizing (natural/colored), sandblasting, wire drawing, high-gloss polishing, and electroplating. We are equipped with professional salt spray test chambers. All finished products undergo salt spray testing to guarantee excellent corrosion resistance of the surface finish in harsh environments.
Q6: How do you guarantee product quality?
A6: We strictly follow full-process QC (IQC, IPQC, FQC). Equipped with advanced measuring tools such as 2D optical projectors, micrometers, height gauges, and pin gauges, we perform 100% inspection on all critical dimensions to ensure precise fit and tolerance.
Q7: Do you only make earphone shells, or can you take orders from other industries?
A7: Absolutely. Our versatile CNC equipment is highly adaptable. While we specialize in Hi-Fi audio hardware, we also extensively undertake custom non-standard machining for 3C electronics, automotive parts, precision instruments, and medical devices.
Q8: What are your payment and shipping terms?
A8: We accept T/T, PayPal, or Trade Assurance. The payment term is usually 30% deposit, and 70% balance before shipment. For shipping, small batches go via international express (DHL/FedEx/UPS), and large volumes by air or sea freight. We offer FOB, CIF, and EXW pricing terms.