1,Raws li Txoj Cai Ntau Lawm Classification
(1) Seamless Yeeb Nkab - Kub Rolled Pipes, Cold Rolled Pipes, Cold-Drawn Tubes, Extruded Tubes, Yeeb Nkab Jacking
(2) welded yeeb nkab
(A) Raws li Cov Txheej Txheem Ua Haujlwm - Arc Welded Yeeb Nkab, ERW Yeeb Nkab (High Frequency, Tsawg zaus), Gas Pipe, Rauv Yeeb Nkab
(B) Los ntawm Weld Points - Longitudinal Welded Pipe, Kauv Welded Pipe
2,Nyob rau hauv raws li Tshooj Shape Classification
(1) Ib qho yooj yim-Section Steel Tube - Vajvoog Hlau Tube, Square Steel Yeeb Nkab, Hlau Tube Oval, Daim duab peb sab Steel Yeeb Nkab, Hlau Yeeb Nkab Hexagonal, Pob Zeb Diamond-shaped Steel Tube, Hlau Yeeb Nkab Octagonal, Semi-Circular Steel, Lwm yam
(2) Lub complexity ntawm Hla-Section Steel Tube - Scalene Hexagonal Steel Yeeb Nkab, Tsib Plum-Shaped Steel Tube, Steel Tube Ob-Convex, Ob Chav Concave Steel Yeeb Nkab, Melon-shaped Steel Tube, Conical Steel Yeeb Nkab, Corrugated-shaped Steel Tube , Hlau Yeeb Nkab Watchcase, Lwm yam
3,Classified Raws li Phab Ntsa Thickness - Thin-walled Steel Yeeb Nkab, Thick-walled Steel Yeeb Nkab
4,Los ntawm End-Siv qeb - Cov yeeb nkab nrog cov yeeb nkab steel, cov yeeb nkab steel rau thermal
Khoom siv, Machinery rau Industrial Siv Steel Pipes, Petroleum, Geological Drilling Siv Steel Yeeb Nkab, Steel Tube Thawv, Tshuaj Muaj Hlau Yeeb Nkab, Tshwj Xeeb Hom Hlau Yeeb Nkab, Lwm Yam
Post lub sij hawm: Nov-16-2018
