heavy firm mattress
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Extra Firm Innerspring Mattress
1. Rapid service with a 7-day turnaround & no minimum order quantity: Our independent R&D and prototyping workshop is fully capable of providing you with a wide range of OEM/ODM customizations. We confirm that our lowest order quantity is as low as one unit and we promise to have samples ready within 7 days after receiving your design specifications. 2. Ultra firm spring mattress: This mattress has undergone and passed lab testing for 30,000 cycles of roller pressure fatigue, resulting in a less than 5mm indentation. We are so confident in our materials - our 2.4mm high-carbon steel springs and 60D high-density firm foam - that we provide a 15-year warranty on our core structural components.
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