How Provis designed part-number search for a 20,000-part industrial catalog.
Karb-Tech sells industrial parts in Hungary to trade and retail buyers. Provis designed its webshop and built the front end: search by part number, technical filters, and every price with and without VAT. Karb-Tech's own platform runs the catalog behind it.
Client: Karb-Tech Kft.MRO supplier to manufacturers in HungaryThree things built for every buyer.
- Search
- by part number
- one search bar on every page, across the whole catalog or inside one category
- Prices
- with and without VAT
- every price shown gross, with the net figure under it, so trade and retail buyers each read their own
- Mobile ordering
- a responsive front end
- results turn into cards with price, quantity and stock, so an order can be placed from the shop floor
At a glance
- Problem
More than 20,000 different parts, sold to businesses and to individuals, and a buyer who usually knows only the part number.
- Solution
Provis designed the webshop around the part number, then built its responsive front end and handed it over.
- Result
Still the live front end of shop.karb-tech.hu, handed over in full, and, in the client's words, “flexible and fast to deliver the outcomes”.
- Client
- Karb-Tech Kft. (karb-tech.hu)
- Industry
- Industrial supply: MRO (maintenance, repair and operations)
- Market
- Hungary; trade and retail buyers
- Platform
- Webshop: shop.karb-tech.hu (opens in a new tab)
- Services
- UI/UX design and front-end development
- Built with
- Hand-coded, responsive HTML, CSS and JavaScript
- Engagement
- Completed and handed over; Karb-Tech owns the code and design files
- Behind the front end
- Karb-Tech's own platform: catalog, prices, stock, checkout
The website was successfully developed and met the requirements of the client. They were flexible and fast to deliver the outcomes. Provis Technologies’ speed and skills had ensured a successful partnership.
A maintenance buyer arrives with a part number, not a product name.
Karb-Tech supplies the region's manufacturers with bearings, power transmission, pneumatics, tools and maintenance materials, and keeps stock on hand for planned work and for breakdowns. When it briefed Provis, its warehouses held more than 20,000 different parts, and the shop had to serve businesses and individuals at the same time.
How a part gets ordered
- A machine stopsor a planned service is due
- The engineerhas a part number, not a product name
- Searchthe number, everywhere or in one category
- Results and filtersvariants side by side, narrowed by technical data
- Add to basketa quantity stepper on every result; checkout is Karb-Tech's
- Karb-Techpicks and ships from its own warehouse
Highlighted steps are the screens Provis designed and built.
Karb-Tech had the stock. Provis designed how buyers find it.
The brief, in Karb-Tech's words: with 20,000 types of products and both B2B and B2C customers, “it was not easy to plan the UX/UI for the webshop.”
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A catalog too big to browse
With more than 20,000 different parts, menus alone could not get a buyer to the right bearing. Karb-Tech's buyers usually arrive with a part number.
What Provis designed and codedSearch first, on every pageOne search bar in the header, across the whole catalog or inside one category, with results as a table of part number, manufacturer, sizes and price. The search itself runs on Karb-Tech's platform.
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Two kinds of buyer in one shop
Businesses think in prices net of VAT. Individuals pay the gross price. Showing only one confuses the other.
What Provis designed and codedEvery price shown both waysThe gross price leads, with the net price plus VAT (ÁFA) under it, on every result and every card.
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Near-identical variants of the same part
A search for one bearing returns a long list of variants: sealed, shielded, different clearances. The difference is in the technical data.
What Provis designed and codedFilters on technical dataFilter screens for price and technical data such as load rating and limiting speed, plus sorting and a list or grid view; the data behind them comes from Karb-Tech's platform. One ticked load rating takes twenty results for an SKF 6205 down to two.
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Orders placed from the shop floor
The person who needs the part may be standing next to the machine, with only a phone to hand.
What Provis designed and codedA responsive front endOn a phone each result becomes a card with the price, a quantity stepper, an add-to-basket button and stock status, and the menu folds away.
Designed, built, handed over.
- DesignedThe UX and UI, for trade and retail buyers
- BuiltThe responsive front end, in HTML5, CSS3 and JavaScript
- Handed overCode and design files, in full, with the agreed scope complete
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Designed: the UX and UI of the webshop for trade and retail buyers, around the part number.
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Built: a responsive front end in HTML5, CSS3 and JavaScript. On a phone, results turn into cards with price, quantity and stock.
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Prices: every price shown with and without VAT, so each kind of buyer reads their own.
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Where Provis's part ends: the catalog data, prices, stock and checkout run on Karb-Tech's own platform. Provis designed and coded what buyers see and use.
Search first:
Built around the part number.
One search bar in the header of every page, across the whole catalog or inside one category. Results come back as a table of part number, manufacturer, sizes and price. The search itself runs on Karb-Tech's platform.
Every price shown gross, with the net figure under it.
Code and design files handed over in full.
How Provis builds online storesStill the front end Karb-Tech's buyers use.
Screens from shop.karb-tech.hu, captured in October 2026. The shop is in Hungarian; captions are in English. Select a screen to enlarge it.
See it live:shop.karb-tech.hu (opens in a new tab)the SKF 6205 search, live (opens in a new tab)
- 1Tick one load rating: 14 kN
2Twenty results become two
A search for SKF 6205 returns twenty variants. One ticked load rating leaves two, each with its specs, net and gross price and stock status. 
A category page: sub-categories as picture tiles.
The same search on a phone: price, quantity, basket, stock. 
The phone menu: search first, then categories.
After the project
Since then, Karb-Tech has run the shop itself.
The engagement completed when the agreed design and front end were delivered and handed over. Karb-Tech's buyers still use that front end today.
Where clients keep Provis on after launch, it stays: The Vault since 2012 and TrueWholesale since 2022.
How Provis runs projects now
- One project leadyour single point of contact
- A written weekly update and a demoof what was built that week
- A staging link and your repoyou see the work as it is built; the code goes straight into your repo
- QA before launchour QA team tests every feature
- Live until switch-overrebuilding? Your current product keeps running until the new one takes over
- Yours from day onecode repo, cloud account and domain in your company's name; our team joins as collaborators, and you can remove access at any time
- Our team works in India, on ISTIndia is 3.5 hours ahead of Hungary, 9.5 ahead of New York, 4.5 ahead of London and 1.5 ahead of Dubai, and 4.5 behind Sydney (northern summer).
Selling thousands of products to trade and retail buyers?
Tell us how buyers find a part on your site today, and where your catalog lives. We will come back within two working days with an approach, a rough timeline and a rough cost range. No charge, no commitment.
- Your platform stays where it is. Catalog, pricing and checkout are not touched.
- The screens your buyers use are redesigned and rebuilt, search first, with prices shown the way each buyer pays.
- Back end too? Provis connects it to your ERP or CRM, as it did for TrueWholesale with Zoho.
- A SaaS product or an ordering portal? Same approach: your back end stays, and the screens your users touch are rebuilt.
- After launch, your call: a full handover, as here, or Provis stays on with 24/7 monitoring and support.
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