Types |
Application |
Structure Purposes |
General structure and mechanical |
Liquid Services |
Petroleum, gas and other fluids conveying |
Low and Medium Pressure Boiler Tube |
Steam and boiler manufacturing |
Hydraulic Pillar Service |
Hydraulic support |
Auto Semi-shaft Casing |
Auto sem-shaft casing |
Line Pipe |
Oil and gas conveying |
Tubing and Casing |
Oil and gas conveying |
Drill Pipes |
Well drilling |
Geological Drilling Pipe |
Geological drilling |
Furnace tubes, heat exchangers tubes |
Furnace tubes, heat exchangers |
Tolerance:
Pipe types |
Pipe sizes(mm) |
Tolerances |
Hot rolled |
OD<50 |
±0.50mm |
OD≥50 |
±1% |
WT<4 |
±12.5% |
WT 4~20 |
+15%, -12.5% |
WT>20 |
±12.5% |
Cold drawn |
OD 6~10 |
±0.20mm |
OD 10~30 |
±0.40mm |
OD 30~50 |
±0.45 |
OD>50 |
±1% |
WT≤1 |
±0.15mm |
WT 1~3 |
+15%, -10% |
WT >3 |
+12.5%, -10% |
Q1: Are you trading company or manufacturer ?
A: We are a factory. Our factory locates in Shandong Province. If you would like to visit our factory, just inform us in advance, we warmly welcome all of our clients to visit us.
Q2: How long is your delivery time?
A: Generally, it is 10-15 days after receiving the deposit.
Q3: What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.
Q4: What is your terms of delivery?
A: EXW, FOB, CFR, CIF, etc.
Q5: What is your sample policy?
A: We can supply free samples if we have ready parts in stock, but the courier cost are charged.
Q6: what is your main products?
A: Our main products are listed as follows: Precision steel pipe, Hot Rolled steel pipe, Cold Drawn steel pipe, Seamless steel pipe, Alloy steel pipe, Bearing steel pipe, Welded pipe, Spiral pipe, Galvanized pipe etc.