chem17, ybzhan, hbzhan and zyzhan, four Chinese B2B portals for lab instruments, industrial instrumentation, environmental equipment and pharmaceutical machinery, in the same columns as the machinery portals: English category, reference price in yuan, supplier, province and city, and quality flags.
Quick answer: Products and suppliers from four Chinese B2B portals with no public API (chem17, ybzhan, hbzhan and zyzhan): lab instruments, industrial instrumentation, environmental equipment and pharmaceutical machinery, with English category, reference price in yuan, province and city, and no personal data. Sample of 100 rows in CSV and JSON.
None of the four has an API. Each actor reads the public pages over HTTP, with no browser, by category or by shop.
| Portal | What it is | What you find | Actor |
|---|---|---|---|
| chem17.com 化工仪器网 | Lab and analytical instruments | Chromatographs, spectrometers, pH meters, balances, test chambers, lab consumables | chem17 |
| ybzhan.cn 仪表网 | Industrial instrumentation and sensors | Pressure sensors, flow meters, level meters, temperature, analysers | ybzhan |
| hbzhan.com 环保在线 | Environmental and monitoring equipment | Wastewater, dust and gas treatment, water and emission monitoring, chromatography | hbzhan |
| zyzhan.com 制药网 | Pharmaceutical machinery | Tablet presses, capsule fillers, packaging, mixers, dryers and also active ingredients | zyzhan |
One actor per portal, all with the same schema as the Chinese machinery portals. Reference price or "面议" (on request), depending on the supplier.
Listing or details. In listing mode you get title, category, reference price, supplier, city and photo, very cheaply. Details add exact brand and model, technical parameters, origin, minimum order and dates. The samples on this page are listing mode, which is why brand is rarely present (flag brand_missing).
Flag, never drop. Nothing is filtered: token prices, products without a model or machine-translated supplier names carry their flag in qualityFlags and you decide.
Six real use cases: who uses them, what you do and which fields you need.
title, ext_categoryEn, priceCny, seller, citypriceCny, priceType, ext_categoryEnprovince, city, seller, categorytitle, priceCny, updatedAt, sellerext_categoryEn, seller, provincetitle, ext_categoryEn, priceCny, cityWhat a short run of each portal returns.
| Portal | Rows | With price | Price range | Categories | Provinces | Top province |
|---|---|---|---|---|---|---|
| chem17.com | 67 | 24 | 9.9 ¥ – 50,000 ¥ | 5 | 11 | 上海 |
| ybzhan.cn | 60 | 30 | 100 ¥ – 99,999 ¥ | 15 | 11 | 山东 |
| hbzhan.com | 60 | 30 | 10.0 ¥ – 4,000,000 ¥ | 14 | 11 | 上海 |
| zyzhan.com | 60 | 29 | 20.0 ¥ – 68,000 ¥ | 5 | 6 | 陕西 |
Existing runs from 20 and 22 October 2026 in listing mode, in the default categories and a few test ones. The range mixes consumables and equipment: it is indicative, not a price index.
113 of 247 products publish a reference price; the rest are "on request". Suppliers in the sample are in 15 provinces, mostly on the east coast (Shanghai, Beijing, Jiangsu, Guangdong and Shandong). In zyzhan, much of the sample comes from Shaanxi because it includes active-ingredient suppliers.
100 rows in the common schema. Public samples download without signing up.
| source | title | ext_categoryEn | priceCny | province | city |
|---|---|---|---|---|---|
| chem17.com | ASCH CL-9D02超微量pH计 | pH meters | 50,000 ¥ | 上海 | 上海市 |
| chem17.com | 数字PH传感器 | pH meters | 10,000 ¥ | 北京 | 北京市 |
| ybzhan.cn | Smartline智能数字真空变送器 | Piezoelectric sensors | 5,000 ¥ | 北京 | 北京市 |
| ybzhan.cn | 亚川智能压差控制器SC560-K01余压控制器 | Differential pressure sensors | 100 ¥ | 陕西 | 西安市 |
| hbzhan.com | 地埋式一体化生活污水处理设备 | Underground wastewater treatment equipment | 10,000 ¥ | 山东 | 潍坊市 |
| hbzhan.com | 雨水收集回收利用系统 | Other wastewater treatment equipment | 23,580 ¥ | 江苏 | 南京市 |
| zyzhan.com | 粉剂包装机 | Powder packaging machines | 1,000 ¥ | 湖南 | 长沙市 |
| zyzhan.com | 微电脑控制100克医药原料粉末定量分装机 粉剂包装机 | Powder packaging machines | 3,000 ¥ | 上海 | 上海市 |
Two real rows per portal, in listing mode. The title is shown shortened and in the original Chinese.
No personal data. Phone numbers, emails and personal contacts are never collected. This site's samples also leave out the supplier name and shop links.
Paste the input into each actor's JSON tab and press Start. They are 10-row tests in each portal's default category.
| Task | Input (JSON) | What it is for |
|---|---|---|
| chem17 · pH meters | {"categories": ["367"], "maxItems": 10} | Suppliers and reference price. |
| ybzhan · pressure sensors | {"categories": ["20406"], "maxItems": 10} | Industrial instrumentation. |
| hbzhan · wastewater treatment | {"categories": ["7692"], "maxItems": 10} | Environmental equipment. |
| zyzhan · powder packaging machines | {"categories": ["2578"], "maxItems": 10} | Pharmaceutical machinery. |
| chem17 · with spec sheet | {"categories": ["367"], "includeDetails": true, "maxItems": 10} | Brand, model, parameters and minimum order. |
The category is picked from a dropdown with each portal's full tree (thousands of categories); picking a parent category downloads all its children.
The same columns as the Chinese machinery portals.
| Field | Description |
|---|---|
source · listingId · url · title | Portal, identifier and original Chinese title |
category · categoryPath · ext_categoryEn | Portal category, full tree and English name |
brand · model | Brand and model (detail mode, or parsed from the title) |
priceCny · priceText · priceType | Reference price in yuan, original text and type: reference / on_request |
location · seller | Province and city; supplier company, type and shop |
specs · moq · ext_origin | Technical parameters, minimum order and origin (detail mode) |
postedAt · updatedAt · scrapedAt | Publish, update and capture dates |
qualityFlags | brand_missing, model_missing, model_from_title, price_on_request, listing_only, seller_name_en_rule_based… |
Pay per result on Apify, or the data delivered on a schedule.
The title and parameters are kept in Chinese; the category also arrives in English (ext_categoryEn). Full translation is done as a custom project.
No. In the sample, almost half publish a reference price and the rest are "面议" (on request). The type is in priceType.
Because it is listing mode, where the portal does not show the brand. With includeDetails you get brand, model, parameters and minimum order.
Yes. These four portals and the machinery ones (21-sun, jc35, jdzj, lmjx, d1cm) return the same columns, so they can be combined into one table.
Phone numbers, emails and personal contacts are never collected; only the supplier company and its public shop.
Yes, over HTTP with no browser. Detail mode is slower from outside China; the actors retry with backoff and accept your own proxy.
Tell us which products or categories you care about and we will send an extract in the schema you would receive.