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One-Stop Custom Metal Parts

We are a Chinese manufacturer of precision parts, CNC machining services and sheet metal.

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Our Services

precision cnc parts
machining of copper alloy parts
Sheet metal fabrication auto service
5 axis cnc machining services

precision parts

Whether in stock or custom-made to your specifications: screws, nuts, bolts, washers, rivets, and more.

CNC Machining

Receive fully finished CNC machined parts, with no minimum order requirement.

sheet Metal

Precision enclosures and sheet metal parts, including brackets, plates, frames, arms, bus bars, fixtures, and more.

surface finishing

Over 20 finishes can be customized, from anodized to plated, polished to electroplated, all with the utmost attention to detail.

cnc manufacturer

About Us

J&B began its glorious journey in 2011 at Shenzhen, Guangdong, China. In the course of recent decades it has been essentially into manufacturing and supplying to automobile, mechanical, non-standard automation equipment, communication equipment, sports equipment, electrical engineering, over the globe. J &B is a main player in the worldwide business sector for the manufacturing,fasteners, automation equipment parts, forging processing, CNC numerical control processing and sheet metal processing. We also manufacture custom products as per your requirement, drawing, sample, sheet metal parts, turn parts component etc.

Why Choose Us

Want to change suppliers but hesitant because of material costs, processing and shipping? Worried about quality, lead times and after-sales service?

high precision cnc machining
Client Testimonials
“This CNC machining service was able to complete my project, without sacrificing the quality of the final product. Great packing, great products. Great delivery time!”
Kenneth
“I just visited the factory last month and was very impressed. Modern factory, well organized, and I found that this is the real source of CNC machining manufacturers.”
Maurice
“The service has been incredible. From the beginning to end they were in constant communication and incredibly fast turn around. Highly recommended.”
Pavel

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Hardness (Brinell)Density (g/cm^3)Tensile Strength(MPa)Fatigue Strength (MPa)
Aluminum 6061602.68193117
Aluminum 6063732.721468.9
Aluminum 70501472.83490160
Aluminum 7075(Aerospace Grade)1502.81503159
Aluminum MIC-6652.7105N/A
Aluminum 5052602.68193117
Hardness (Brinell)Density (g/cm^3)Tensile Strength(MPa)Fatigue Strength (MPa)
Copper 10165 - 908.89 - 8.9469 - 36576 - 90
Copper C11065 - 908.8969 - 36576 - 90
Copper C17280 - 858.25515 - 585275
Copper C26060 - 828.53103 - 44190
Copper C36063-1308.49124-310138
Brass CZ12190 - 1608.47360 - 500220 - 360
Brass CZ13170 - 1408.5340 - 480200 - 350
Hardness (Brinell)Density (g/cm^3)Tensile Strength(MPa)Modulus of Elasticity (GPa)Elongation at Break(%)
Stainless Steel 17-73887.812752046
Stainless Steel 3012178.0320521240
Stainless Steel 3031608.0324020050
Stainless Steel 3161878.0320519340
Stainless Steel 3322008.0329419644
Stainless Steel 4163607.89622009.5
Stainless Steel 4205067.8104020011.5
Stainless Steel 440C495 - 6537.8450 - 1900204 - 2152.0 - 14
Hardness(Shore D)Density (g/cm^3)Modulus of Elasticity (GPa)Tensile Strength(MPa)Elongation at Break(%)
HDPE50 - 760.92 - 0.990.565 - 1.511 - 433 - 80
UHMW-PE54 - 1200.8 - 1.80.3 - 1.111.6 - 403.5 - 800
PVC801.16 - 1.651.82 - 7.033.45 - 73.12 - 330
ABS/Nylon Blend641.04 - 1.210.9 - 5.327 - 1003.1 - 230
Acrylic600.7 - 1.30.95 - 3.7925 - 851 - 85
Nylon 6676 - 881.02 - 2.70.6 - 2510 - 981 - 300
PTFE11 - 700.7 - 3.350.392 - 0.750.86 - 41.470 - 650
PEEK62 - 941.26 - 1.722.14 - 2411 - 1251.7 - 100
POM-H811.423.27530
POM-C791.412.86740
Hardness (Brinell)Density (g/cm^3)Tensile Strength(MPa)Modulus of Elasticity (GPa)Elongation at Break(%)
Titanium(Grade 1)1204.5170 - 31010324
Titanium(Grade 2)2004.51276 - 44810320
Titanium(Grade 4)2654.51480 - 65510515
Ti-6Al-4V(Grade 5)3794.43110011410
Bronze11.6 - 4205.6 - 1469 - 80072.4 - 1380 - 70
Zinc Alloy (Zamak 5)916.720870 - 1007
Steel Alloy AISI 43403887.8597220012.1
Nickel Alloy175 - 2408.44414 - 75820716