Tiêu chuẩn ống thép hàn xoắn AWWA C200 /API 5L PSL1
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BS 1387 - ASTM A53
14,500 vnđ
ASTM A53 API 5L
BS 1387-1985
19,800 vnđ
seamless steel pipe JIS G3429
18,904 vnđ
ASTM A106 API 5L GR.B
steel pipe JIS 3132/SPTH1
14,900 vnđ
JIS G3454 STPG , JIS 3452 SGP
18,900 vnđ