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Our enamelled copper wires have got UL and SGS certifications. Features: 1) High hot grade 2) Very direct soldering tin 3) Convenient to operate 4) Increased efficiency 5) No saline infusion needle hole 6) Especially suitable for pressing various kinds of windings for electrical machines, electric apparatus, and JIS standard instruments Specifications: 1) Composition: non-pinhole and self-fluxing polyurethane enameled round copper wire class 180 2) Type: a) QA-1/180 (thin) b) QA-2/180 (thick) 3) Standards: a) GB6109.1 - 90 b) GB6109.4 - 85 c) Customer's standard 4) Elongation: >25% 5) Spring back: <55° 6) Breakdown voltage: >4kV 7) Soldering tin soak in temperature: a) 375±5°C 2S b) 450±10°C 4S 8) Saline infusion needle hole: DC12V, 1min, <1/5m 9) Surface grit coefficient: ≤0.08