High tensile Black PVC tarpaulin vent duct hose for hvac systems

Q2:How about the quality?
A2:Our factory has ISO9001 certificate and Some of our products have passed UL181 and BS476 examinations in the past few years,and we are getting more international certificates this year.

Q3:Wie wäre es mit Ihrer Lieferzeit?
A3: Allgemein, es wird dauern 15-20 days after receiving your deposit. the specific delivery time depends on the items and the
quantity of your order.

Q4.If I have custom-made requirements, do you have a person to design according to my concept?
A4: Jawohl, our R&D department will assign a designer to each customized orders to make sure everything goes the way customers want.

Q5. Can you produce according to the sample?
A5: Jawohl, we can produce if you have samples and we can develop accordingly.

F6. Testen Sie alle Ihre Waren vor der Auslieferung?
A6: Jawohl, We have our QC team and our products will strictly inspect before delivery
Jawohl，the QC team checks the products at least 3 times after each procedure of the Assembly line.

Q7.Is the sample fee refundable or not?
A7: refundable once order confirmed.

Q8：Introduce your company briefly
A8：In the 1990s, we made acquisition of DEC Beijing（DUTCH ENVIRONMENT CORPORATION Netherlands）and all of its machines、equipment and techniques. After over 20 years of development, we have progressed lots of new products and techniques on basis of DEC, and these new products are widely used in many fields in China such as military、Luft- und Raumfahrt、nuclear power、air conditioning、construction，etc.