1. Create a Website: Develop a professional and user-friendly website to showcase your products. Include detailed product information, high-quality images, specifications, pricing, and contact details. If you're not familiar with web development, you can hire a professional or use website builders like WordPress, Shopify, or Wix.

2. Search Engine Optimization (SEO): Optimize your website for search engines like Google so that potential customers can easily find your products when they search for relevant keywords like "heavy-duty castor wheel" or "BANGFA G41LF150N wheel." This involves using relevant keywords, creating high-quality content, optimizing meta tags, and building backlinks.

3. Online Marketplaces: List your products on popular online marketplaces like Amazon, eBay, Alibaba, and more. These platforms already have a large user base, which can help increase the visibility of your products.

4. Social Media Marketing: Create profiles on social media platforms like Facebook, Instagram, LinkedIn, and Twitter. Share engaging content related to your products, industry news, and useful tips. Use relevant hashtags to increase the reach of your posts.

5. Content Marketing: Start a blog on your website where you can share informative articles, guides, and tutorials related to castor wheels, industrial equipment, and maintenance. This can establish you as an industry expert and attract organic traffic to your website.

6. Email Marketing: Build an email list of potential customers and send out regular newsletters with updates about your products, promotions, and industry news. Provide value to your subscribers to keep them engaged.

7. Pay-Per-Click (PPC) Advertising: Use platforms like Google Ads to run targeted advertising campaigns. These ads will appear when users search for keywords related to your products. You only pay when someone clicks on your ad.

8. Influencer Collaborations: Identify influencers or bloggers in the industrial or manufacturing niche and collaborate with them to review and promote your products. Their endorsement can help build trust among their followers.

9. Video Marketing: Create product demonstration videos, tutorials, and educational content related to your products. Post these videos on platforms like YouTube to engage with your audience visually.

10. Networking: Join relevant online forums, groups, and communities where professionals in your industry gather. Participate in discussions, provide valuable insights, and subtly promote your products when relevant.

11. Customer Reviews and Testimonials: Encourage satisfied customers to leave reviews and testimonials on your website or other online platforms. Positive reviews can significantly influence potential buyers.

12. Analytics and Optimization: Regularly monitor the performance of your online efforts using tools like Google Analytics. Adjust your strategies based on the data to improve your reach and conversion rates.

Remember that building a strong online presence takes time and consistent effort. By implementing a combination of these strategies, you can increase the visibility of your BANGFA HEAVY DUTY PP DOUBLE BALL BEARING WHEEL G41LF150N products and reach a wider audience on the network.