... 3.AISI JIS GB DIN EN 4.HR/CR stainless steel coil/sheet/plate BrandCHAMBROADGrade200 series:201/202300 series:301/ ... , after cold rolling, by heat treatment, pickling or other equivalent treatment and lastly by cold rolling to given appropriate luster ... petro, thermoelectricity, tourism, culture and paper-trading, chemicals-trading, steel-trading, etc. It has become the top 100 developing enterprises ...