Question 1

What is the difference between ductile iron gully grating and cast iron grating?

Accepted Answer

Ductile iron QT500-7 features higher toughness and impact resistance. It bears heavy traffic load without easy fracture, ideal for municipal drainage projects.

Question 2

Do you support customized gully grating with non-standard opening sizes?

Accepted Answer

Yes. We can produce custom clear opening, frame width and overall dimension according to your site installation drawing.

Question 3

Could you tell me your minimum order requirement for ductile iron gratings?

Accepted Answer

We accept small trial batches. For cost-effective ocean shipment, full container quantity is highly suggested for regular stock items.

Question 4

How do you guarantee the load-bearing performance of your gully gratings?

Accepted Answer

Every production batch completes load-bearing test, hardness inspection and raw material analysis. Relevant test documents can be supplied.

Question 5

How long will it take for mass production and delivery?

Accepted Answer

Standard common sizes are in stock for shipment within 7-15 working days. Custom-made items require 20-35 days subject to order volume.

Question 6

What kinds of payment options can you accept for overseas orders?

Accepted Answer

T/T and sight L/C are available. Flexible payment terms can be discussed for long-term stable cooperative partners.

Question 7

What surface finishing options are available for drainage gully gratings?

Accepted Answer

Bitumen paint, black epoxy anti-corrosion coating and anti-rust treatment are offered to extend service life under wet environment.

Question 8

What is your packing solution for sea export of iron gratings?

Accepted Answer

Products are stacked neatly on steel or wooden pallets and wrapped with waterproof plastic film. Both FCL and LCL shipments are supported.

Question 9

Am I able to get sample pieces for quality evaluation?

Accepted Answer

Small test samples can be provided. Sample cost and international freight shall be covered by the buyer side.

Question 10

Which overseas markets consume your ductile iron drainage products most?

Accepted Answer

Our gratings are widely exported to Europe, Middle East, South-East Asia, South America and Africa for urban infrastructure construction.

Question 11

What traffic load grades can you supply for ductile iron gully grating?

Accepted Answer

We supply A15, B125, C250, D400, E600, F900 grades to match footways, parking lots and heavy-duty road conditions.

Question 12

What typical projects apply your ductile iron gully gratings?

Accepted Answer

Mainly for road rainwater drainage, trench system, residential zones, public squares, airport and port drainage facilities.

Question 13

Is anti-theft hardware optional for your gully grating sets?

Accepted Answer

Anti-theft hinge and anti-theft lock accessories can be fitted, preventing theft for public outdoor installation environment.

Question 14

Can you issue mill test certificate accompanying shipment?

Accepted Answer

Yes, material test certificate including chemical composition and mechanical property data can be provided upon client demand.

Question 15

Does your ductile iron gully grating comply with international standards?

Accepted Answer

Our products strictly follow EN124-2 and GB/T 23858-2009, meeting most municipal project acceptance requirements worldwide.

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