Introduction: Rifeng W PMI foam addresses a practical composite question: how to reduce resin uptake without making processing or structural performance harder.   In composite manufacturing, the difference between a promising design and a repeatable part often sits inside the laminate. A core material has to be light, but it also has to survive shaping, bonding, pressure, heat, and the small process variations that appear on a real production floor. Rifeng W is a medium-cell-size PMI structural foam developed for those decisions, particularly in vacuum infusion, RTM, medical-imaging, UAV, automotive, and underwater applications. For this conversation, Daniel Luo, Product Manager at Rifeng, discusses why the material was positioned between coarse and fine cell structures, where engineers can gain weight and cost control, and where they should slow down and verify the process before specifying a grade.   Q&A Body When a composites team says it needs a lighter part, w...

Introduction: Z type sheets can help furniture packaging teams think clearly about surface separation, local coverage, and size adaptation without treating sheets as complete transit protection. Furniture shipment creates a different packaging problem from small parcel fulfillment or industrial machinery packing. A flat tabletop, cabinet side panel, door front, shelf, or assembled furniture surface may be wide, finished, and visually sensitive, while its final package still depends on cushions, corners, outer cartons, pallets, straps, and handling conditions. For a learner comparing Z type sheets for furniture packages, the useful question is not whether a sheet name guarantees protection. It is how fanfold cardboard sheets may fit into a larger packaging method for separating surfaces, covering broad areas, and adapting to furniture parts with varied dimensions. Furniture Packaging Often Needs Sheet-Based Protection Before It Needs a Fixed Box Furniture parts are frequently large e...