The advantages in roto-moulding process: 1. One-piece construction: virtually stress-free enclosed parts or with openings 2. Design flexibility from various size and shapes. 3. Economical for short production runs, prototype research and volume production 4. Variety of finishes and color 5. Metal inserts as integral parts 6. Weight reduction as compared to most metals. 7. Excellent load-bearing properties 8. Ability to produce multi-wall moldings, hollow or foam filled 9. Minor undercuts are possible with no draft angles required 10. Thickness can be varied if required 11. Cost saving - economic tooling costs 12. Uniform wall thickness no thinning in the extremities 13. Resistance to stress-cracking and corrosion Please refer to our factorys advantage in technology as following: 1. We can design and make any kinds of rotational moulds and products according to your requirements. We have R& D department. They can deal with tech-drawings composed by pro-engineer, CAD, solid works, unigraphics (majorly) , and so on. 2. We can supply you full-scale circumspect service, from mould design, mould making, products production, assembly, package, to finished products delivery. Till now, we have exported our moulds and products to 56 countries. 3. With near 20 years mould making experiences, our casting aluminum moulds have no pinholes. 4. We have plenteous and powerful facilities in our factory. such as Wooden pattern workshop, 6 processing centers, 6 digital linear cutters, 5 digital controlled millers, and so on , and more than 20sets different roto-moulding machines in our production workshop. 5. 20 years experiences of aluminum roto-mould and molding plastic parts making, we can handling and resolving various difficulty in roto-moulding field freely. 6. Shortest lead time, generally, our mould lead time is around 30 days. From mould design to the qualified sample finishing. If you have any question or requirements, or want to know more information about our factory, please contact with me directly. I will be quite pleased to do you any favor in time. Best regsrds Sunny 0086 15821665099 Email/MSN: sunnychunxu@hotmail.com