Lincoln Electric

奥托昆普(Outokumpu)

ESAB Welding & Cutting

LJ welding automation

Cy Laser

Arcelor Mittal

艾普伦不锈钢(Aperam)

LUVATA.coldchina.com / 诺而达热交换器(中山)有限公司

Nippon Steel & Sumitomo Metal Corporation

普莱克斯(Praxair)

IPG Photonics Corporation

Bowers & Wilkins(宝华韦健)