Plunger for hypodermic syringe having integrally molded shaft and head and method for making
作者： H Leveen , R Leveen
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摘要: Article (22) having portions (23, 26) of materials with different properties are integrally formed by injection two thermoplastic simultaneously through separate gates (15, 16) into the same mold (10) wherein fuse or bond together. A plunger for a syringe (32) process has rigid shaft (23) and an elastomeric head (26).
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