Qingdao Topwell Chemical Materials Co., Ltd.diadegake ing 2014, minangka supplier profesional sing melu riset, adol lan pigmen khusus lan pewarna khusus sing ana hubungane karo jinis cahya - sinar UV, cedhak cahya infra merah (IR), cahya sing katon.

produk utama kita kalebu,

1. UV/IR neon pigmen lan pewarna,

2. Pigmen termokromik,

3. Cedhak pewarna nyerep inframerah,

4. Pigmen perilen,

5. Werna sensitif cahya sing katon

6. Pewarna lan pigmen fotokromik

7. Urolithin A