Preform mould with collapsible core: 1.High quality material 3. ... with collapsible core As a professional plastic mould manufacturer in China, we specialize in designing and making injection moulds for various plastic ... Plastic MaterialPP,PC,PS,PE,PU,PVC,ABS,PMMA ect Mould Life 300,000-3,000,000 shots Injection ... by air ,according to customers' requirement. Preform injection mould with collapsible core