... fire warning/alarm etc 3.OEM/ODM metal security warning signs 1.Material : Material include: PVC, acrylic, stainless steel, aluminum, ... , etc. Our sign use for various areas. We make direction sign, warning sign, safety sign, male female sign, door sign, road sign ... is always welcome, as per client's own design and artworks, material,size and thickness, special sign function requirements.For more or ...