Shandong High-Strength Fastener Co., Ltd.
Specialized in high-strength structural fasteners for bridges, high-rise buildings, and heavy machin...
β Verified Supplier
π Yantai Longji Fastener Co., Ltd.
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π’ Company Profile
Manufacturer specializing in shipbuilding and marine fasteners with DNV GL approval, serving the offshore and maritime industries.
π¦ Product Portfolio
High-Strength Bolts
PrimaryBolts
High-strength structural bolts
π GB/T 1228, ASTM A325
π§ 40Cr, 35CrMo
β‘ Grade: 8.8-12.9
Stainless Steel Bolts
PrimaryBolts
Stainless steel marine bolts
π GB/T 5783, DIN 933
π§ 304, 316, 316L Stainless Steel
β‘ Grade: A2-70, A4-80
Duplex Stainless Bolts
PrimaryBolts
Duplex stainless bolts for offshore
π GB/T 5782, ASTM A193
π§ 2205, 2507 Duplex Stainless
β‘ Grade: B8M Class 2
Lock Nuts
Nuts
Lock nuts for marine applications
π GB/T 889, DIN 985
π§ Carbon Steel, Stainless Steel
β‘ Grade: 6-10
π Industry Applications
π§ Contact Information
π€ Contact Person
Yan Liu
π§ Email
sales@longji-fastener.com
π Phone
+86-535-6936888
π Website
http://www.longji-fastener.com
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