1.Standard length is 27.5m per piece, we also can produce and cut anchor chains according to your requirement . 2. Material: alloy steel, generally including G30/G40/G60/G70/G80 , or according to your requirement 3. Grade : U2&U3 stud link anchor chains 4. Surface treatment: self color, black painted, zinc galvanized, hot dip galvanized or according to customer's requirement. 5. The tension breaking load conforms to National Standard. 6. Studlink/Studless anchor chains. Specification: 30-162mm, mainly adapt to vessels,marine. 7. CERTIFICATE: KR,ABS,LR,BV,NK,GL,DNV,RS,IRS,CCS;