The joint planning of spare parts and maintenance workers in a multiple echelon inventory system with lateral and cross-echelon transshipment can reduce the total cost of the system. However. partial pooling is not extensively considered in the joint optimization problem of maintenance resources. In this paper. https://www.diegojavierfares.com/mega-price-21-Ladder-4-Tier-Wooden-Cupcake-Holder-Dessert-Display-Stand-Whitewashed-flash-save/