29 USA 
10 Singapore 
10 Argentina 
7 France 
5 UK 
5 Ecuador 
4 Iraq 
3 China 
3 Paraguay 
3 South Africa 
2 Colombia 
2 Belgium 
2 Japan 
2 Chile 
1 Sweden 
1 Bangladesh 
1 New Zealand 
1 Hong Kong 
1 Trinidad and Tobago 
1 India 
1 Czech Republic 
1 Russia 
1 Uruguay 
1 Cambodia 
1 Morocco 
1 Germany 
1 Uzbekistan 
1761 - 1761 of 1761 listings
d2x2b optical switch Photos Catalog - page 89 - WorldBid B2B Market
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Leading Optical Brightener ObChemicals - Dyes / Pigments - TIANJIN LEADING IMPORT & EXPORT CO., LTD - China - August 31, 2025 - contact company for priceOptical brightener OB is poorly soluble in water, and soluble in alkane, mineral oil, and common organic solvents. 1. Applications: Optical Brightener OB can be used for whitening thermoplastics, PVC, PS, PE, PP, ABS, acetate fibre, paint, coating, p...