This standard specifies the requirements for rubber and blank preparation of fluorine and silicone rubber metal molded products, surface treatment, coating process, vulcanization, trimming and inspection of metal parts. This standard applies to the production and quality control of fluorine and silicone rubber metal molded products.
HB/Z 235-1993 history
1993HB/Z 235-1993 Process specification for metal molded products of fluorine and silicone rubber