Our Story

PENTA GROUP CO.,LTD is a combination of production and trade, industry and trade integration corporation. PENTA GROUP includes Ningbo Penta Import & Export Co., Ltd. Ningbo Xinya Machinery Factory, Ningbo GrandAsia Technology Co., Ltd. Ningbo Fuao Auto Parts Co., Ltd. Ningbo Hangzhou Bay New District Penta Machinery Factory.

Ningbo Xinya Machinery Factory was established in 2004,which is a professional stainless steel and super alloy fasteners manufacturer. Our product includes all kinds of screws,fixings,washers, nuts, bolts, pins, threaded rods, machining parts, flanges, and so on.

We have not standard fasteners but a number of non-standards items, including CNC parts and stamping parts products. (Detailed product information you can browse our website) Our range is complemented with a large choice of fixing technology from high reputable manufacturers. We have a strong design team and a well-established supply chain, and can manufacture all kinds of hardware according to your requirements. Available sizes from M3 to M150. Length from 1 millimeter to 6meter. Our delivery will be shorter than 95% suppliers in China. Our products are popular with most customers in America, Japan and Europe etc. market.

Our raw material includes normal stainless steel, such as SS303, SS304, SS316 /316L, SS309S, SS317L, SS321, SS347, SS347H, SS310S, and 1.4529, 904L, 254SMo, Alloy 286, 2.4952(Nimonic 80A), and Duplex steel series of 2205(F51/S31803/S32205), 2507(F53/S32750), Hastelloy B3 /C4 /C22 /C276 /C2000 / G3 /G30/X, Inconel600/601/617/625/690/718/725/X750, Incoloy 800/800H/800HT/825/901/925/926, Monel 400 /K500.What’s more,the Surface treatments are available for 4 types.such as: Phosphating Blackening,Zinc Plated,HDG(hot dip galvanized),Dacromet Coating etc. The mechanical performance class/grade of carbon steel are 4.8(4.6, 5.8), 8.8, 10.9, 12.9 according to DIN standard, and GR2, GR5, GR8, B7 according to ANSI standard; Stainless steel 201, 304, 316,Which are applied to connectors of shield tunnel segment (concrete), wind-power screws series, nuclear-power assembling fasteners, steel structure bolts series and other non-standard components for solar power, etc, both of which enjoy great popularity among customers domestic and foreign customers.We are reliable supplier of fasteners with 1 years warranty. We are looking forward to get more cooperation.

Ningbo Penta Import & Export Co., Ltd was established in 2014,which is located in Ningbo, the largest port city in China. With a experience over 20 years, Ningbo Penta Co., Ltd produces 3000 kinds of ball valves, gate valves, check valves, Bibcocks, Y-strainers, DIN& ANSI &GB flanged ball valves, globe valves,filter valves, foot valves standard and various fittings etc. Our valves are sold well in North America, Europe, Asia, Middle East, owning a great reputation overseas.We have about 120 staffs, 15 senior professional title employees and more than 100 workers.Due to our competitive prices and good quality, we have been exporting valves to USA,EUROPE,AFRICIA,MIDDLE EAST etc. market for more than 15 years.

Except for valves&fasteners,we also exporting Silicon material,Gloves,Tide detergent and equipment to EUROPE,USA supermarket,Southeast Asia more than 5 years,which was sold well in their local market.We have a strong supply chain in China.

In the meantime.We also import brass and copper material from America&Europe, our production capacity reaches 1500-2000 tons each month. Our company is making great efforts towards the first class service and most cost performance products and we will as always adhere to the principle of recycling economy in harmonious environment. Welcome the clients from home and abroad to join us and create the brilliant future together. You can visit another website for reference: www.grandasiametal.com
We are not the biggest factory but skilled workers and technicians are engaged with us to produce the best quality of all products according to the International standardization ISO9011 and ACS and CE Mark.Our trademark is "100% Customer Satisfaction",at the present many foreign traders have contacted us as manufacturer and our products are distributed worldwide.

Meanwhile,we have adopted advanced machines to produce high quality products.We can also provide OEM and ODM services, which the modern management and strict quality before shipment "Quality First,Service Foremost", that is the  philosophy of our enterprise.