Auto-Conveying Type Needle Detector NC-B Micro-LCD Display Auto-Conveying Type Needle Detector NC- ... sewing products, such as: garments,fabric, knit underwear, shoes, hats, toys, crafts, down products, bedding products, carpets etc.2. Detecting magnetic ... in pure Copper, Aluminum, Stainless Steel. SPECIFICATIONS1. Type NC-B(100) 2. Detection Method Magnetic induction3. Detection adjustment Max.100 ...