A mold includes a guide pin configured to guide mold closing. The guide pin is housed in a guide pin housing hole formed in a parting line and is configured to be driven by a predetermined drive mechanism. The guide pin is configured to protrude its tip end from the parting line and to retract into the guide pin housing hole by the drive mechanism.

Described are joint designs, tooling, and molding methods for a hollow object, such as an automobile bolster. The methods and structures provide a process and system that facilitates mold alignment, part alignment, material strength, design adaptability, efficient processing, reduced labor, increased production rates, reduced energy consumption per part, aesthetically pleasing surfaces, and reduces or eliminates the need for welding.

An injection mold including at least one first station for the injection of a first portion of the part, at least one second station for the injection of a second portion of the part, a first loader including at least one first molding cavity, the first loader being movable at least in rotation between the first injection station and a first transfer and/or assembly area, a second loader including at least one first molding cavity, the second loader being movable at least in rotation between the second injection station and a second transfer and/or assembly area, wherein the injection mold includes at least one transfer loader, movable at least in rotation between the first transfer and/or assembly area and the second transfer and/or assembly area.

A vehicle decoration part is arranged in a pillar sheet metal and/or a window frame of a vehicle and includes a decoration body and a decoration film attached to surface(s) of the decoration body, wherein the material of the decoration body is metal, and the material of the decoration film is flexible material and forms decoration surface. The vehicle decoration part possesses stable performance and can meet the user's requirements of different appearances. When the vehicle decoration part is applied to a vehicle window glass assembly, bad appearance caused by bumping or scraping in molding process and daily use process can be avoided. The molding device and the manufacturing process of the vehicle window glass assembly are easy to realize, economical in cost and wide in application prospect.

A circulation pipe structure and a manufacturing method thereof are provided. The circulation pipe structure includes an upper member, a lower member coupled to the upper member to form the circulation pipe structure, and first coupling parts respectively provided on the upper member and the lower member. The first coupling parts are engaged with each other when the upper member and the lower member are coupled. The circulation pie structure also includes a second coupling part that couples the upper member and the lower member to each other by a coupling member.