The carbon papers from Pelikan are great for copying. Available in different types.
Carbon Paper
Clay Carbon Transfer Paper (Single, Reusable 8.5x11 Sheet) — The Pottery Piazza
Kores Carbon Paper, GSM: Less than 80, 100 at Rs 170/piece in Mumbai
Carbon Papers and Sticker Labels - Copier Papers - Office Stationery
SCI Materials Hub
30 Pack Carbon Tracing Papers, Graphite Copy Paper UK
Ticker Tape Timer Carbon Paper
Carbon transfer paper: come with enough tracing paper, enough for your spare or replacement; Can transfer dark, clear and visible lines Erasable
30 Pack Carbon Papers for Tracing, Graphite Carbon Copy Tracing Paper for Canvas Wood Paper (White, 8.5 x 11 Inch)
200 Sheets Carbon Paper Graphite Paper Black Carbon Transfer 8.5 X 11.5 Inch Tracing Papers With 5 PCS
100 Sheets Carbon Transfer Paper with Embossing Stylus Set for
Description, Carbon transfer paper, which is enough for your spare, or replacement. Transferred patterns and letters are easy to clean off , on paper
100 Sheets of Carbon Transfer Copy Paper One-side Transfer Paper A4 Carbon Paper
전기화학 계측기, 전극, 전해 셀, 소모품 전문기업