... 20years to make mold 3,high quality used for 5-10 years high quality extrusion calibrator for plastic mould.1, we can ... of the mould is 3Cr17 Mo, and made in China. The hardness of stainless steel is HRC28- ... the price will be high more.6,we have large yearly capacity for extrusion mould is around 1500sets ... have more than 20 engineers to design mould for customer.7,our company occupied area 15000m2, and ...