It seems like you're looking for durable self-adhesive stop signs for both floors and walls with a size specification of 430mm. While I don't have the ability to directly sell or provide specific product recommendations, I can offer some guidance on where you might find such items.
Office Supply Stores: Many office supply stores or business supply retailers carry a variety of safety signage, including stop signs. You can check with local stores or browse online.
Safety Equipment Suppliers: Companies that specialize in safety equipment often have a range of signs for various purposes. They may have options for self-adhesive stop signs suitable for both floors and walls.
Constructed from an industrial grade plastic, these safety floor signs are intended for use in factory warehouses and buildings where restrictions and safety notifications need to be highlighted.
Whilst these had been traditionally designed for industrial use they are being widely used in shops, supermarkets and banks as social distancing floor signs.
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