龙脉已成功带领了若干个专业贸易代表团访问中国。该贸易团体大多来自美国的制造业。具体行业涉及金属压铸、锻造和、铸造及家具制造行业。龙脉也与相关产业的北美权威贸易组织建立的良好的合作关系。

龙脉曾带领访问中国的贸易代表团包括：

Delegation for Fabricators and Manufacturers Association (FMA)
Delegation for Steel Founder's Society of America (SFSA)
Delegation for Non-Ferrous Founders' Society (NFFS) and California Cast Metal Association (CCMA)
Delegation for North American Die Casting Association (NADCA)
Delegation for North American Die Casting Association (NADCA)
Delegation for Tooling & Manufacturing Association (TMA)