ASTM A743 CA6NM 结构钢 S420G1+M S420G2+Q S420G2+M S460G1+Q S460G1+M S460G2+Q S460G2+M S355G1+N S355G13+N S355G13+Q S420G5+Q S460G5+Q S355G1+N S355G14+N S355G14+Q S355G15+N S355G15+Q S420G6+Q S460G6+Q S355G1 S355G1+N S355G4 S355G4+M S355G11 S355G11+N S355G11+M S355G12 拥有一站式的整合优势,不论在品质、成本或服务面,都深受客户的认同和肯定。