Fengyue Tools Group Co., Ltd.
drill bits, drill bit, hss drill bits, hss drill bit, Manufacture and Supplier - China(CN)
DIES 1)ISO2658 Machine and Hand Round Thread Dies High Speed Steel or Alloy Tool Steel Metrical and UNC/UNF, BSW/BSF 2)ISO 4230R 3)ISO 4231 - Update: 2007-07-06
1) DIN223 Machine and Hand Round Thread Dies High Speed Steel or Alloy Tool Steel Thread standards: Metrical, UNF/UNC, BSW, NPT 2) DIN5158 3) DIN5159 - Update: 2007-07-06