High Quality Steel Ruler Tunnel Convergence Tape Extensometer

Usage: For quick and accurate measurement of relative distances between pairs of reference points on the surfaces of structures including radial movements and convergence of tunnels, shafts, linings and caverns, deformation of excavations in underground caverns and displacements of retaining walls, cuttings, bridge piers, arches.

 Installation and training

1.If buyers visit our factory and check the machine, we will teach you how to install and use the machine, and also train your workers/technician face to face.

2.Without visiting, we will send you user manual and video to teach you to install and operate.

3.If buyer needs our technician to go to your local factory, please arrange board and lodging and other necessary things.

After Service

1.One year guarantee for whole machine.

2.24 hours technical support by email or calling

3.If there is any problem found of the machine, we will repair it for free in one year.

We can delivery by sea at any port in China.

We also can ship by air via express company (door to door), it is quick and safe.

We can ship By EMS,TNT, DHL and others (door to door).

We supply various Concrete Test Apparatus, Cement Test Apparatus, Soil/Road Test Apparatus,Asphalt Test Apparatus, Concrete Test Cube Mould and other Lab Apparatus.

If you need any Apparatus, please contact us.

Q:Are you trade company or factory?

A:We are trade company but we also have own factories. Building trade company is just for exporting various types of concrete mould and others products.

Q:Why your price is higher than others?

A:As we persist on that each factory should put quality at the first place. We spend time and money on developing how to make machines much more automatic, accurate and high quality. We can make sure that our machine could use more than ten years without any problem. We can provide one years free quality assurance.

Q:How to visit your company?

A:1. Fly to Beijing airport: By high speed train From Beijing Nan to Cangzhou Xi (1 hour),then we can pick up you.

2.Fly to Shanghai Airport: By high speed train From Shanghai Hongqiao to Cangzhou Xi(4.5 hours), then we can pick you up.