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ASTM Grades of Alloy and Carbon Steel Bars: 4130, 4142, 4140, 4340, 8620, 8640 - Comprehensive Guide1
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casting 4130 8620 steel spoon forging / 8620 steel forging spoon1
Jiangyin Golden Machinery Equipment Co.,Ltd
0 views 2 years ago
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forging 4340 steel tube head / forged 8620 steel tube head1
Jiangyin Golden Machinery Equipment Co.,Ltd
0 views 2 years ago
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