... 4. Flexural strength: 39Mpa Shandong Hehui New Materials Technology Co., Ltd. is a professional manufacturer engaged in graphite product ... following categories:Graphite products for Electronics, Solar PV Technology IndustryGraphite products for Non-ferrous metals, precious metals, ... minimum level of education is the vocational school, 6 senior engineers, 8 technicians, 4 business people, skilled ...