QUALITY


ISO 9001

ISO 14001

CE / PED

ABS
Rubber Expansion Joint

DNVGL
Rubber Expansion Joint

BV
Rubber Expansion Joint

ABS
Metal Expansion Joint

DNVGL
Metal Expansion Joint

BV
Metal Expansion Joint

LR
Metal Expansion Joint

KR
Metal Expansion Joint

Certificate of Root Company

INNO-BIZ Confirmation

Company-affiliated research institute certificate

Patents