After-sales Service: | Professional Personnel Docking |
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Warranty: | 12 Months |
Type: | Seamless |
Technique: | Hot Rolled |
Material: | Alloy Steel |
Surface Treatment: | Antiseptical |
Samples: |
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Customization: |
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standard | GB/T3639-2000 | DIN2391 | EN10305 | ASTM A519 |
material | C20 CK45 Q355B Q355D | E355/ST52 SAE1026 | 4130 4140 | STKM 13C |
Heat treatment | BK+S | |||
size | I.D:30mm-400mm | O.D:40mm-480mm | ||
length | Fixed length | Random length or as requests of customers | ||
Straightness | 1/1000 | |||
Technology | Honed SRB(SKIVED AND ROLLER BURNISHED) | |||
Scope | Honed tube for hydraulic cylinder,swivel crane,injection machine and construction machine application |
Q1: Are you Manufacture or Trade Company?
A1: We are manufacture,we have 10 years experience for supply Metal material and products in domestic.
Q2: How can we guarantee quality?
A2: Always a pre-production sample before mass production;Always final Inspection before shipment;
Q3: What is your terms of payment ?
A3: 1.T/T: 30% deposit in advance, the balance 70% paid before shipment
2.30% down payment, the balance 70% paid against L/C at sight
3.Upon negotiation
Q4: Can you provide Certificates for materials ?
A4:Yes,we can supply MTC-Material Test Certificate.
Q5: Can you provide sample?
A5: Yes, we can provide you sample, but you need to pay for the sample and freight firstly. We will return the sample fee after you make an order.
Suppliers with verified business licenses