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[China]
Trade Verify
Address: No.208,Lvdi Road,Baihe Town,Qingpu District,Shanghai,China
Contact name:
TOBO STEEL GROUP CHINA |
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Verified Suppliers
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304 Capillary Precision Seamless Tube Sanitary Tube Round Tube Sleeve 316 Industrial Hollow Steel Tube
1) Specification: the specification requirements of spiral steel
pipe should be listed in the import and export trade contract.
Generally, it should include the standard brand number (type code),
the nominal diameter of the steel bar, the nominal weight (mass),
the specified length and the allowable value of the above
indicators. Our country standard recommends spiral steel pipe
series with nominal diameters of 8, 10, 12, 16, 20, 40mm. Supply
length is divided into fixed length and double length. China's
export rebar length selection range is 6 ~ 12m, Japanese rebar
length selection range is 3.5 ~ 10m.
(2) Appearance quality: ① Surface quality. The surface quality of
rebar is stipulated in the relevant standards, requiring that the
end should be cut flat and straight, the surface shall not have
cracks, scarring and folding, and there shall be no harmful defects
in use; (2) Allowable value of dimension deviation. The bending
degree of rebar and the requirements of steel bar geometry are
specified in the relevant standards. As stipulated in Chinese
standards, the bending degree of straight bar is not greater than
6mm/m, and the total bending degree is not greater than 0.6% of the
total length of bar.
