The 16-inch manhole cover is a special manhole cover for foreign trade export. The manhole cover is installed on the top of the tanker and has built-in breathing and emergency exhaust functions. During the oil transportation process, the internal breathing valve maintains the pressure balance inside and outside the tank. When the pressure inside the tank rises sharply, the emergency exhaust device automatically opens to release the internal pressure. Even if an accident occurs, the anti-overflow device of the breathing valve can still maintain a seal to prevent accidents.

We have professional designer and accurate CNC lathe machine and reliable testing equipment , so OEM or ODM service can be offered . Whole process from drawing design to finished product testing can be controlled by ourselves , and it is safe for you to cooperate with us . 

Hubei Huate Special Equipment Co., Ltd. was founded in 2009 and covers an area of about 30,000 square meters. The company promotes total quality management: GB/T19001-2016. t has successivelyobtained safety management system certification and environmental protection certificationin 2019. it has obtained high-tech enterprise certification, emergency shut-off valveindustrial production license, dangerous goods (vehicle tank/storage tank) industriaproduction license in 2020. t has obtained the type approval certificate for measuringinstruments and the production qualification for special purpose vehicles in 2021.in line with the professional development trend of the automobile industry, in the fields ofInternet of Things, intelligence and emergency rescue, Huate makes full use of thecompany's patented technology and the advantages of self-production of parts andcomponents, and focuses on the "Internet of Things intelligent special-purpose vehicleproduction project", ln 2022, the focus will be on the development of "Internet of Thingschemical liquid transport vehicle", "Internet of Things filling and oil transport vehicle" and'mobile inspection vehicle"; In the later period, intelligent professional vehicles such ashazardous chemical emergency rescue vehicle" and "dangerous goods emergencytransfer vehicle" will continue to be added. Among them, "Internet of Things ChemicaLiquid Transport Vehicle","Mobile Inspection Vehicle" and "Dangerous Goods EmergencyRescue Vehicle" will fill the domestic gap.

The company provides safety accessories and assembly solutions to various tank truck refitfactories through the production of Huate brand, Sinocls brand safety accessories.on-board electronic products, and Kateli brand special vehicles; to provide end users withstandard and standardized overall intelligent equipment.

Q: Are you trading company or manufacturer ?

A: We are factory.

Q: How long is your delivery time?

A: Generally it is 5-10 days if the goods are in stock. or it is 30 days if the goods are not in stock, it is according to quantity.

Q: Do you provide samples ? is it free or extra ?

A: Yes, we could offer the sample but not for free charge but can return when the single order reach to 2000pcs.

Q: What is your terms of payment ?

A: Payment<=3000USD, 100% in advance. Payment>=10,000USD, 30% T/T in advance ,balance before shippment.
If you have any other question, pls feel free to contact us as below:

Q: :How long have you worked in this field?
A: Over 15 years.

Q: Can your factory produce products according to our drawings or samples?
A: Yes, of course we can.