duct spiral pipe appearance quality
The surface shall be free from cracks, scars, folds and other defects with depths Duct Spiral Pipe exceeding the nominal wall thickness. The pipe wall shall not be cratered with a depth exceeding 6.4mm.The length of the crater shall not exceed 0.5d.The welding residual height of the steel pipe shall be less than or equal to 3.5mm.
duct spiral pipe
ASTM, GB, API, JIS, BS, DIN, YB, SNY, ETC
Q235, Q195, Q345, Q215, API 5L Gr.B,Gr.65,Gr.60,Gr.70,
Outer Diameter: 15mm-1626mm
Wall Thickness: 2mm-30mm
Length: 6m-12m Or As Requested
ERW, LSAW, SSAW, DSAW
Black Painted, PE/PVC/Pp Coated, Galvanized, Color Coated, Anti Rust Varnished,
Anti Rust Oiled, Checkered, Epoxy Coating, Etc.
Plain End, Spigot & Socket Joint, Beveled, Cut Square, FLANGED, Piling Shoes
1) Plastic Pipe Cap
2) Iron Protector
Standard Export Package, Suit For All Kinds Of Transport Or As Required.
EXW, Fob, CFR, CIF, Etc.
T/T, L/C At Sight, Etc.
1) General Service For Industries ( Petroleum, Chemical, Aviation, Etc.)
2) Fluid, Gas And Oil Transport,
3) Press And Heat Transmission,
4) City Construction, Etc.
Production qualificationSpiral welded pipe manufacturers should hold the production license for industrial products issued by the state.Permit system for spiral welded pipe manufacturer should first through the national recognized the authority of the verification organization review assessment, be equipped with the appropriate means of production, testing equipment, quality assurance system running effectively, level and quality of the products should comply with the national standard specification requirements, confirmed by the national industrial products production license office after the release.Therefore, spiral welded pipe manufacturers have relatively perfect quality assurance system and quality control procedures.Straight welded pipe manufacturers do not have the requirements of industrial production license
The Process Flow
Cangzhou Steel Pipe Group (CSPG)Co.,Ltd.
has more than eighteen years history company which located in Lecong Iron and Steel World, a well-known steel distribution center in China, with superior geographical position and convenient water and land transportation.
We are a direct-selling manufacturer specializing in the research and development of spiral steel pipes, steel coiled pipes, anti-corrosion steel pipes inside and outside. Since its inception, the company has been guided by a brand-new thinking of steel pipe product market based on the business philosophy of honesty, pragmatism and knowledge-seeking.
Edit by Ms. Vicky of CSPG
Contact us directly by:
Email: email@example.com ,firstname.lastname@example.org
Tel / Whatsapp: +86-180327140146