Steam Supply Jacking Concrete Lined Ductile Iron Pipe Environmental
Friendly
QA and QC for Jacking for Small Diameters
In the same way as the jacking method for medium to large diameter,
controls for progress, material and equipment, work, safety and
pollution are highlighted for QA and QC for small diameters
jacking. Small diameter jacking have some specific problems such
as: impossible jacking, zigzag line, pipe break, surface settling,
groundwater inflow, damage to other utility lines. Man-entry is not
possible for small diameters. So the excavation face cannot be
checked directly visually. Furthermore, even in case of emergency,
human operation is impossible in the tunnel. For this reason, it is
expensive to control the emerging situation. Therefore, QA and QC
requires special attention.
Our Service
1. Good quality and low price.
2. Good after-sale service.
3. Bring the finest goods to customer is our ultimate goal.
4. Products are exported to various countries.
Q: Is sample order acceptable?
A: Yes,of course.
Q: How to place the order?
A: You can send us email or inquiry.
Q: How many days for delivery?
A: Normally within 15~30 days after receipt of payment.
Q: How to make the payment?
A: We accept T/T, L/C.
Q: How will you make the shipment?
A: By sea, air or express service.
