·Neck ring, Core & cavity are made of stainless S136; The mould plate made of S55C, and the mould plate and cooling channels internal coating of hard chrome, without rust;
·Interchangeable for Core, Cavity and Neck Ring;
·Tolerance of thickness not more than ± 0.05mm;
·Weight tolerance not more than ± 0.3grams;
·Warrant: 12 months after shipment.