Injection molding refers to a specific manufacturing process that Amazon is not using. http://www.vulcanmold.com/uploads/image/plastic-injection-molding-proces

Injection molding refers to a specific manufacturing process that Amazon is not using. http://www.vulcanmold.com/uploads/image/plastic-injection-molding-proces.jpg http://www.vulcanmold.com/uploads/image/plastic-injection-mo...