We are a professional manufacturer with CNC machining centers. We always supply customers machinery parts by forging and precision machining as per customers' drawing requirement.
| Process | Materail | Production Capacity | Finishing |
| Hot Forging | Carbon steel | CNC Machining Center | Plating |
| Machining | Aluminum | CNC Precision Lathe | Anodizing |
| Casting | Brass | CNC Drilling and Tapping | Coating |
| Stainless steel | Punching machine | Polishing |
| Cast iron | Friction press Machine | Painting |
| Alloy steel | Stamping machine | Hardening |
More information is available upon receipt of your inquiry. You will get our quick reply!
Warranty:1. We always stand behind what we sell, with warranty and excellent customer service. This is the biggest difference between our company and other Chinese suppliers whose parts and service are impossible to get. Sylue warrantes our products for one year, Sylue will replace the non-correct products for free including courier fee during warranty time.
2. Sylue Limited Warranty
Sylue warrants our products against manufacturer's defects in materials and workmanship. This warranty does not apply: (a) to damage caused by accident, abuse, misuse, misapplication, or non-Sylue products; (b) to a product or part that has been modified without the written permission of Sylue.
3. In the period of warranty, you should pay for sending faulty parts back to us, and we will pay for sending replacements to you. When complaining about a visual defect, you needn't send us the faulty parts if you could provide us with enough photos as requested. In case of no photos or invisible defect, you have to send back the faulty parts to us. When a product or part is exchanged, any replacement item becomes your property and the replaced item becomes Sylue's property.
4. Customer must present evidence that the claimed products were bought with Sylue and the broken product is due to manufacturer's defect. All warranty claims must be authorized and accepted by Sylue in advance.
Ningbo Yinzhou Enpu Machinery Parts Factory is an excellently developing private one which specializes in producing, Electric power accessories automobile fittings and hydraulic pressure flange of British standard, American standard and international standard. Our professional technology is canonized by the professional field. Since long time ago we had provided qualified products at home and overseas.
Our factory is located in the Lotus Country Shipping Hydraulic Pressure Fa Bridge Industrial Zone which is at the side of the Ningheng Road in Yin country, Ningbo, Zhejiang. We exert the advantage of the geography field of shipping fittings. We focus on the customers, the best quality and do well everything. "We gradually improve the quality and the skill of management, and customize the factory, based on the tenet. Response flexibly, provide the products on time, best quality and perfect service".
Welcome to our factory visiting the assembly line and do business with us. We believe our factory will be your best reliable partner.
We are also the leading manufacturer of oil country tubular fittings, swages, and bull plugs. We are in the heart of the oil patch market. We recognize our customers delivery and special requirements. We take that extra step to accommodate these needs. We are dedicated to a continuous quality improvement process to maximize all aspects of the company and service our customers needs.
Line Pipe Bull Plugs
Nominal Pipe Size Range 1/8" - 8" NPS
Bull plugs available in schedule 40 (standard), schedule 80 (extra heavy), schedule 160 (S160), (double extra heavy (XXH), or solid.
All bull plugs can be tapped.
End finishes are available: Current API threads, beveled for weld, square cut (socket weld) or grooved
Tubing Bull Plugs
Nominal Sizes 1" - 4 1/2" upset and non-upset.
Tubing Bull Plugs are available with all current API threads (8 or 10 round, 11 1/2V, 10V, 8V).
Wall thickness' available are standard through double extra heavy.
Standard materials are J-55, K-55, N-80 or L-80.
Thread types are color-coded for easy identification.
Casing Bull Plugs
Sizes Range 4 1/2" - 9 5/8" O. D.
Casing bull plugs available with all current API threads or beveled for welding.
Casing bull plugs available in standard, extra heavy, double extra heavy.
Standard materials are J-55, K-55, N-80 or L-80.
Thread types are color-coded for easy identification.
Refinery Plugs - Nominal Sizes 1/8" - 2 1/2".
Wall thickness' available are standard through double extra heavy.
Manufactured out of cold drawn bar which is heat treated in accordance with ASTM A234-04 WPB.
Line Pipe Bull Plugs
Nominal Pipe Size Range 1/8" - 8" NPS
Bull plugs available in schedule 40 (standard), schedule 80 (extra heavy), schedule 160 (S160), (double extra heavy (XXH), or solid.
All bull plugs can be tapped.
Tubing Bull Plugs
Nominal Sizes 1" - 4 1/2" upset and non-upset.
Tubing Bull Plugs are available with all current API threads (8 or 10 round, 11 1/2V, 10V, 8V).
Wall thickness' available are standard through double extra heavy.
Standard materials are J-55, K-55, N-80 or L-80.
Thread types are color-coded for easy identification.
Casing Bull Plugs
Sizes Range 4 1/2" - 9 5/8" O. D.
Casing bull plugs available with all current API threads or beveled for welding.
Casing bull plugs available in standard, extra heavy, double extra heavy.
Standard materials are J-55, K-55, N-80 or L-80.
Thread types are color-coded for easy identification.
Refinery Plugs - Nominal Sizes 1/8" - 2 1/2".
Wall thickness' available are standard through double extra heavy.
Manufactured out of cold drawn bar which is heat treated in accordance with ASTM A234-04 WPB.
