1. Excellent physics mechanics characteristics

The density of the FRP tube material is 1.8-2.1g/cm3.It is about 25 percent of the steel. The density is higher than rolled steel , cast iron and plastic. The weight of the FRP tube is not more than 33 percent of the same specification steel tube, The physics mechanics characteristics. The FRP tube’s heat expanding modulus is almost the same as the steel. The heat exchange modulus is 0.5% of the steel. It is a good insulation material of heat and electricity.

2. Anti chemistry eroding, The using lifespan is longer

The FRP tube has the special characteristic of anti chemistry eroding, under the star studded condition of the tube. It depends on the request of the medium to choose the different anti eroding tube. As for the vertical burying FRP filling voile tube the lifespan must be more than 40 years.

3. Hydraulics characteristics

Excellent Hydraulics characteristics mean that a smaller pipe diameter or a smaller power delivery pump can be selected, so as to reduce the initial investment of pipeline engineering, save electricity and reduce operating costs.

4. Low fee of installing and maintenance

The FRP tube doesn’t need special antisepticise disposal, heat preservation can reduce thinness, the pipeline is light, little suspending equipment tonnage, consume little power, long single FRP pipeline, few tie-in on the scene, so the construction is convenient.

5. Unpolluted medium

The FRP pipeline’s density is higher, no impurity peel off and shed, no cauterization, without microorganism and bacteria, so it will not bring any pollution to the transporting material.

Shandong GRAD Group Co.,Ltd. is established in 1993, located in Dezhou Shandong,covering an area of 700 thousand square meters, with more than 2500 employees. The total capital is 925 million RMB, and annual output value exceeds 2.5 billion RMB. During 20 years' development, GRAD Group concentrates on the central air-conditioning and compound material products and show the world a high-technological enterprise combining construction budget, technical consultation, product design, Manufacturing and debugging service. There are 10 series, over 130 Kinds of products covering the whole central air-conditioning series and the compound materials series Products. The high standard workshop covering 350 thousand square meters.

Before-sale services:   

(1) Tell customers how to use our products and matters needing attention.

(2) Guide customers to choose the best and economic product, recover the investment within short time.  

(3) Site inspection if you need. 

In-Sale services:   

(1)Quality control must be inspected strictly.  

(2)In accordance with the agreements stipulated in the contract.   

After-sale services:   

(1) If the project needs our installation guidance, we can send our engineer and translator. We can also send customers installation video to teach them how to fix and operate with 

our product.  

(2) Usually, our product warranty is 18 months after leaving factory or 12 months after installation. within this months, all parts broken will be responsible for our factory.

(3) Regular contact with customer, consult with the customer feedback, come true with 

the customer's two-way communication.