管件，為TYLER UNION生產的垂直線用管件模具及配套下芯框-泊頭市永宏模具有限公司

The molds and matching lower core frames for the pipe fittings for vertical lines for TYLER UNION

The molds for the pipe fittings for the TOKYU line for Japan Kubota Co., Ltd.

The molds for the pipe fittings for vertical lines for American Cast Iron Pipe Company

The molds and matching cold core boxes for the pipe fittings for vertical lines for Xuanshi Group

The molds and matching cold core boxes for?the pipe fittings for vertical lines for STAR