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M20-M100 stud bolt, hex bolt manufacturer-Anyang Longteng Heat Treatment Material Co.,Ltd
Updated:2022-04-16 Attention:91
1200 employee factory for QT round bar, stud bolt, hex bolt, anchor bolt system - Anyang Longteng Heat Treatment Material Co.,Ltd. Bolt conform to ISO898-1 CL 8.8, 10.9, 12.9 or technical agreement.
CNAS lab, BV, CE, EN1090, EN15048, EN14399, ISO9001, ISO41001, ISO45001, UT, MT personnels, patents.
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