Materials: Q235 35# 45# 40Cr Standard: ISO898-1, UIC864-1, and NF F500-50 Grade: 4.6/ 5.6 /8.8/10.9 Surface: plain (oiled), Oxide black, Zinc, HDG, wax, bitumen, Dacromet, Sherardizing Samples: Available on request. MOQ: 5000 Piece/Pieces Supply Ability 2000 Ton/Tons per Month Delivery: within 30 working...