Amazon.com Inc. isn't slowing its pace of fulfillment center construction as it expands its physical footprint. Amazon (Nasdaq: AMZN) stores, sorts and ships products ranging from furniture to fresh produce out of its warehouse network, which employs tens of thousands of people but is becoming increasingly robotized. Adding new warehouses lets Amazon offer two-hour Amazon Prime Now delivery to more Amazon Prime subscribers across the globe. The Seattle-based retailer opened a record 26 fulfillment…