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Professional Customized CNC Machining Iron Shell Moulding Casting Valve Bonnet Factory
US$9.00
200-499 Pieces
US$8.50
500-999 Pieces
US$7.80
1,000+ Pieces
Product profile
Customization
AvailableType
Valve BonnetMachining
CastingModel NO.
Valve BonnetMaterial
Cast Iron , Alloy Steel , Carbon StStandard
En, ANSI, BS, DIN, JISProduct
Valve BonnetProcess
Shell Mould CastingTransport Package
Plywood or Wooden Case, Pallet (as Per Customer'sSpecification
CustomizedTrademark
SYI or OEMOrigin
Shanxi, ChinaProduction Capacity
300 Ton/Tons Per MonthKey features
Customizable Valve Bonnet: OEM/ODM accepted; customizable material, process, and design based on customer drawings or samples.
High Precision Manufacturing: Utilizes shell molding cores, CNC machining, and strict ISO8062/ISO2768 tolerances for high dimensional accuracy.
Comprehensive Quality Control: Full inspection from raw materials to finished products using spectral analyzers, CMM, and hardness testers.
Wide Material Options: Available in Cast Iron, Alloy Steel, and Carbon Steel to meet diverse application requirements.
Experienced Manufacturer: Established in 1988 with rich OEM casting experience, ensuring stable cooperation and quality.
Multiple Standard Compliance: Products comply with EN, ANSI, BS, DIN, and JIS standards for global market applicability.
Flexible Payment Terms: Supports LC, T/T, D/P, PayPal, and Western Union for convenient international transactions.
Fast Lead Time: Average lead time is one month for both peak and off-season periods.
Company profile

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2015-03-19 CertifiedNearest Port: Tianjin PortAverage Response Time: ≤6.13h CertifiedTerms of Payment: LC, T/T, D/P, etc.
AI-Powered supplier vetting
SummarySYI Group, also identified as SYI Industrial Co., Ltd., is a China-based limited company established in 1999 and operating from Shanxi. Its reported product scope includes castings, forgings, ductile iron pipes and fittings, manhole covers, valves, flanges, aluminum castings, and municipal products. The supplier reports ISO 9001:2015 certification and additional TUV, BSI Kitemark, SGS, BV, FM, and WRAS credentials or listings. Manufacturing evidence includes six production lines, automatic moulding equipment, CNC machining, laboratory facilities, in-house tooling, and 21–30 quality-control staff. It exports to multiple global regions and states that exports represent 90% of sales. Evidence supports production capability and certification strength, while after-sales service, financial credibility, innovation outcomes, customization performance, and customer cases cannot be conclusively assessed from the provided information.
Supplier typeThe supplier is described as a combined business entity and limited company, operating in industrial equipment, components, tools, hardware, metallurgy, machinery, construction, and related sectors. Its stated product range is centered on castings, ductile iron products, manhole and municipal products, valves, flanges, and aluminum parts.
CertificationsThe supplier explicitly reports an ISO 9001:2015 certificate and states that it is TUV, BSI Kitemarked, SGS, BV, FM certified, and WRAS listed. These statements provide direct evidence of multiple quality, product, or compliance credentials, although the specific scope and validity of each additional credential are not detailed.
Production capacityProduction capability is supported by a reported 67,275.83 m² manufacturing plant, six production lines, automatic moulding equipment, CNC machining centers, laboratory facilities, in-house tooling, and 21–30 quality-control staff. The supplier also reports one-month fulfillment timing in both peak and off-peak seasons and serves multiple export regions.
Customization capabilityThe supplier lists OEM industrial castings and maintains in-house pattern and tooling shops, which directly supports the ability to develop or manufacture customer-specific cast components. Nevertheless, no examples, minimum requirements, engineering workflow, or documented customization projects are provided.
Product Q&A
Q:What materials are available for the valve bonnet?
A:
We offer Cast Iron, Alloy Steel, and Carbon Steel options to suit different application needs.
Q:Do you accept OEM and ODM orders?
A:
Yes, we fully accept OEM and ODM requests based on your drawings, samples, or ideas.
Q:What is the manufacturing process used?
A:
We use shell molding cores casting, CNC machining, surface treatment, and rigorous inspection.
Q:What quality standards do you follow?
A:
Our casting tolerances comply with ISO8062 and ISO2768, and products meet EN, ANSI, BS, DIN, and JIS standards.
Q:What is the average lead time?
A:
The average lead time is one month for both peak season and off-season periods.
Send Inquiry
*To:
SYI Industrial Co., Ltd.
SYI Industrial Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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