Unscrewing structure is very common in some assembly parts, like bottle caps, water pipes, and other fastening or assembly parts. The final result of sampling defines the result of the final assembly effect. So it's very important to handle it well in the mold design process. In these slides, you can see several unscrewing parts and the mold structure & action Tec-Shine team applied to do the mold. More details about our capability, please log on website www.tec-shine.com, or send email to alisa@tec-shine.com, we are there for you!