Arc France SAS

Arques, Francia

CERVE S.P.A.

Parma, Italia

Chongqing Youyuan Glassware Co., Ltd

Chongqing, China

GAS Familia s.r.o.

Stará Ľubovňa, Eslovaquia

hpe-consulting GmbH Hans-Peter Esser

Dresden, Alemania

Qingdao Crystal Glass Co.,Ltd

Qingdao Shandong, China

RITZENHOFF Cristal GmbH

Marsberg, Alemania

Shandong Yuncheng Ruisheng Glass Co. Ltd

Heze Shandong, China

Stölzle Lausitz GmbH

Weißwasser, Alemania

Trend Glass Sp. z o.o.

Radom, Polonia

TURKIYE SİSE VE CAM FABRIKALARI A.S

İstanbul, Turquía

Zieher KG

Himmelskron, Alemania