plastic face mask mould 1.Material:718,2738,P20,45 ... :1 4.Shots runner:hot/c plastic face mask mould 1.Mould material:P20,718,2738,45# ... step 1.R&DWe support customer R&D. Make the files or improve the design if you needed ... . MouldAccording customers request to build the mould. Before make the mould, we send mould design to customer approval ... air, according customers requirement. plastic face mask mould