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Small batch production is through the existing models, physical, product parts, to rapidly product the silicone molds, after silicone molds curing, the parts removed from the silicone mold to form a mold cavity. Then poured into the liquid PU material (like melting plastic), like ABS, PP, PMMA, etc .After PU curing required the printed the part, silicone mold production time is 6-8 hours.