... oxide, electro galvanized, hot dip galvanized, black painted etc.3) Material: 20Mn2, 25Mnv,10B21, 23MnNiCrMo54,Q235,Q1954) Standard: National Standard ... order 2. Product requirement 3.Buy raw material 4. Inspect raw material 5. Store raw material 6. Wire rod drawing 7. Bending ... (); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); Zinc-plated G80 Load Chain,hoist chain,lifting chain