A fabrication shop's sales problem is an estimation problem
Almost every job shop has the same bottleneck, and it is not demand. One or two people can estimate, those people are also running the floor, and RFQs arrive faster than they can be costed. Enquiries queue invisibly, the ones that get done are the ones that shouted loudest, and the order book ends up shaped by who followed up.
Fix the queue and the rest follows. If every RFQ is an item with a value, an age and an owner, the estimator spends their scarce hours on the jobs most worth winning, and the shop stops discovering three weeks later that a good enquiry was never opened.