NingBo SongHe Fastener Co.,Ltd is a professional stainless steel fastener,carbon steel fastener manufature in Ningbo china.We mainly use stainless steel(SUS304, SUS304L, SUS316, SUS316L, SUS200, SUS201 and carbon steel (C1018A,C1022A,35#,45#,35CrMo, 42CrMo,40Cr) to produce the fastener products so that the fastener machine property could be in A2-70, A2-60, A4-80, A4-70. 4.8, 6.8, 8.8, 10.9, 12.9. All fastener products are strictly according to the ISO, JIS, DIN,ANSI/ASME standard.