Ningbo Zhongjiang Petroleum Pipes & Machinery Co., Ltd.
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Ningbo Zhongjiang High Strength Bolts Co., Ltd.
🇨🇳 China
1998201-300 peopleManufacturer/Trading CompanyEstablished brand
OEM manufacturer
Product customization
Industry association member
Shipments
1174
Key customer
HIGHLAND THREADS
Key market
🇺🇸 United States
Description
Ningbo Zhongjiang High Strength Bolts Co., Ltd. is a professional manufacturer and trading company of high-strength fasteners, established in 1995 in Ningbo, China. With a workforce of over 200 employees and a factory covering 40,000 square meters, the company specializes in producing a wide range of high-strength bolts, nuts, and thread rods. Their product portfolio includes hexagon head bolts, stud bolts (such as ASTM A193 B7/B7m), hex nuts (including ASTM A194 2H/2hm), threaded bars, and non-standard fasteners, with tensile strengths ranging from grade 4.8 to grade 12.9. They also offer hot-dip galvanized products and custom solutions based on customer drawings. The company adheres to international standards such as ANSI/ASTM, DIN, BS, ISO, GB, and JS, and their products are primarily used in high-strength tight firmware and petroleum pipes' valve systems. Ningbo Zhongjiang High Strength Bolts Co., Ltd. is ISO 9001 and CE certified, and operates with advanced manufacturing equipment, including a fully-automatic nut-forming machine from Belgium. With an annual production capacity of 30,000 tons and an annual turnover of 300 million Yuan, the company exports its products globally to markets including Europe, North America, the Middle East, and Southeast Asia, serving customers like Aramco Overseas Company B.V. (Shanghai). They also offer OEM services.
Various Large Size Nuts
Thread Rods (Stud Bolts) -3
Hexagon Head Bolts
A193 B7/B7m Stud Bolts With A194 2h/2hm Nuts
Nuts
Bolts
Threaded Bar
Shandong Chuangjia Petroleum Manufacturing Co., Ltd
🇨🇳 China
2005101-200 peopleManufacturer/Trading Company/OTHEREstablished brand
OEM manufacturer
Patented technology
Low MOQ
Key market
North America
Description
Shandong Chuangjia Petroleum Manufacturing Co., Ltd, established in 2002, is a private incorporated manufacturer and trading company based in Dongying City, China, a region known for the Shengli oil field. With 101-200 employees, the company specializes in the research, exploitation, manufacturing, and sale of petroleum equipment. They offer OEM services and have a strong focus on innovation, developing new products with independent intellectual property rights. Shandong Chuangjia Petroleum Manufacturing Co., Ltd operates with a perfect quality management system and advanced processing, testing, and detecting equipment. Their core product lines include wellhead equipment, Christmas Tree equipment, blowout preventers (BOP), choke and kill manifolds, casing heads, tubing heads, slab gate valves, choke valves, safety valves, downhole tools, thickened oil recovery systems, stainless steel vacuum tubes, self-cleaning type sand depositing instruments, and rod guides. The company holds numerous certifications, including ISO 9001, API 6A, API 16C, API 16A, BOP production licenses, and National Manufacture Licenses of Special Equipment. With 6-10 people in R&D and 6-10 QC staff, they export approximately 80% of their products to international markets, including the Americas and the Middle East.
Slab Gate Valve$444
Positive Choke$200
Hydraulic RAM Bop$200
Casing Head$1000
Choke and Kill Manifold$1000
