Buyers in more than 40 countries source from us.

We just show some of our products on website.
Please feel free to contact us if you are not able to find the products needed. 








Advantage:
1. we are in the line over 10 years and accumulated abandant experience.
2. Having professional production lines, experienced management and skilled workers.
3. Providing custom making service with lowest cost, custom sample and/or design is acceptable, such as metal logo, or hardware with your logo on it.  
4. cost-effective, fast delivery, wide range of products
5. We can deliver small quantity to you for developing sample orders.



Service:
1. We commit to provide "intimate service"(service just in time) of pre-sale, sale and after-sale service.
2. Our forwarding agency can help you transport at low cost if customer don't have freight collect account.

Payment:
Customers can do payment by Western Union or bank transfer.

Delivery date:
5-15 days after deposit received. 

Buyers in more than 40 countries source from us.

We just show some of our products on website.
Please feel free to contact us if you are not able to find the products needed. 








Advantage:
1. we are in the line over 10 years and accumulated abandant experience.
2. Having professional production lines, experienced management and skilled workers.
3. Providing custom making service with lowest cost, custom sample and/or design is acceptable, such as metal logo, or hardware with your logo on it.  
4. cost-effective, fast delivery, wide range of products
5. We can deliver small quantity to you for developing sample orders.



Service:
1. We commit to provide "intimate service"(service just in time) of pre-sale, sale and after-sale service.
2. Our forwarding agency can help you transport at low cost if customer don't have freight collect account.

Payment:
Customers can do payment by Western Union or bank transfer.

Delivery date:
5-15 days after deposit received. 

Tunneling Jumbo

Tunneling jumbos refer to rigs used for underground excavation projects such as underground mine tunnels, railway and highway tunnels, and hydraulic culverts. It can also be used for drilling bolt holes, filling method or room and pillar mining blasthole. The hole diameter is 25-64mm, and the hole depth is 1-5.5m, often 2.5-4m. It is suitable for the tunnel section of 3.2-150m2. The selection of the tunneling rig is mainly based on the roadway section and the driving speed, and at the same time, factors such as the turning radius of the roadway and the support method must be considered.

Tunneling Jumbo,Tunnel Drilling Jumbo,Crawler Tunneling Jumbo,Double Arm Tunneling Jumbo

NORTH HEAVY GRYPS EQUIPMENT AND ENGINEERING CO.,LTD , https://www.nhgtunnel.com