1.Steel grade: Q195,Q235,Q345,A36,S235JR, JIS G 3101,SS400.ect
2.Surface finish: black or galvanized
3. Size tolerance:Between 8-10%
4 The length:6-12m, generally 12m, or according to your order
5 Pac...Zhongjian Santai (Beijing) International Trading Co., Ltd
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