Hi, are there any quickbook agents for consultation( preferredly in car battery industry ) near Shah Alam/Subang, Selangor and KL?

If your company is located in Malaysia, you may use the QBO Malaysia version

https://quickbooks.grsm.io/Malaysia

QBO doesn't have any assembly feature. You may need a 3rd party app to do so and integrate it with your QBO account. Otherwise, consider using QB Desktop Premier or Enterprise edition. Deploy a private cloud if required.

Do you have any specific concern?