Arc France SAS

Arques, Francia

CERVE S.P.A.

Parma, Italia

Chongqing Youyuan Glassware Co., Ltd

Chongqing, Cina

GAS Familia s.r.o.

Stará Ľubovňa, Slovacchia

hpe-consulting GmbH Hans-Peter Esser

Dresden, Germania

Qingdao Crystal Glass Co.,Ltd

Qingdao Shandong, Cina

RITZENHOFF Cristal GmbH

Marsberg, Germania

Shandong Yuncheng Ruisheng Glass Co. Ltd

Heze Shandong, Cina

Stölzle Lausitz GmbH

Weißwasser, Germania

Trend Glass Sp. z o.o.

Radom, Polonia

TURKIYE SİSE VE CAM FABRIKALARI A.S

İstanbul, Turchia

Zieher KG

Himmelskron, Germania