BIG CO.,LTD -

BIG CO.,LTD

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oil tools
Specification: Mechanical Service
Detail: Mechanical Service Our Oil Tools was built with one goal in mind: to design, manufacture and supply the oil and gas industry with superior downhole completion solutions that clients can trust. Over the years, our reputation ...

deephole drilling/boring/honing
Specification: Mechanical Service
Detail: Mechanical Service In order to reach the customer's requirements, we have expanded our Machining Services. We now specialize in other services such as Deep Hole Drilling, Precision Grinding, and Welding. Each time we came upo...

round bar aisi 4140 steel pipe
Specification: Alloy Round Bar
Detail: ASTM/AISI Standard Alloy Round Bar AISI 4140 is a chromium molybdenum alloy steel specification widely used in the oil and gas industry. Similar to grade AISI 4130 but with a slightly higher carbon content. American Iron and...

asi 4130 round bari
Specification: Alloy Round Bar
Detail: ASTM/AISI Standard Alloy Round Bar AISI 4130 is a low alloy steel containing molybdenum and chromium as strengthening agents. The carbon content is nominally 0.30% and with this relatively low carbon content the alloy is exce...

alloy round bars
Specification: Alloy Round Bar
Detail: Specifications · Grade: Alloy steel · Standard: AISI, ASTM, BS, DIN, GB, JIS · OD��?0-500mm · Thickness: Max:800mm · Width: 205mm~2300mm · Length: 1000mm~6000mm · Place of Origin: China (Mainland) · Model N...

gb standard alloy round bar
Specification: Alloy Round Bar
Detail: Round Bar Specifications · Grade: Alloy steel · Standard: AISI, ASTM, BS, DIN, GB, JIS · OD��?0-500mm · Thickness: Max:800mm · Width: 205mm~2300mm · Length: 1000mm~6000mm · Place of Origin: China (Mainland) ...

en/din standard alloy round bar
Specification: Alloy Round Bar
Detail: Round Bar Specifications · Grade: Alloy steel · Standard: AISI, ASTM, BS, DIN, GB, JIS · OD��?0-500mm · Thickness: Max:800mm · Width: 205mm~2300mm · Length: 1000mm~6000mm · Place of Origin: China (Mainland) ...

astm/aisi standard alloy round bar
Specification: Alloy Round Bar
Detail: Round Bar Specifications · Grade: Alloy steel · Standard: AISI, ASTM, BS, DIN, GB, JIS · OD��?0-500mm · Thickness: Max:800mm · Width: 205mm~2300mm · Length: 1000mm~6000mm · Place of Origin: China (Mainland) ...

jis seamless pipes & bs seamless pipes
Specification: Alloy Pipes
Detail: Japanese Industrial Standards (JIS) and British Standard(BS)seamless pipes developed by the organization apply to a wide variety of industrial services and technologies such as automobiles, metallurgy, ships and medical equipm...

gb standard alloy pipes
Specification: Alloy Pipes
Detail: Alloy Pipes GB/T8162 GB/T8163 GB3087 GB6479 GB9948 GB5310 GB/T17396 20G, 20MnG, 25MnG, 15MoG, 12Cr2MoG, 15CrMoG, 12Cr1MoVG, 12Cr2MoWVTiB, 10Cr9Mo1VNb Size (mm) we can supply: Hot-rolled: O.D.: 51-508; W.T.:7��?0; L: max...


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