Genuine productsFactory-direct, or 10x refund
Glass Test Tube, Round Bottom (Heat-Resistant)
Brand：RY ｜ SKU：JX-852897
Request quoteMember price from ¥0.80 (log in) · Factory-direct · OEM/ODM & volume pricing
Size / capacity
15*10015*15018*18020*20025*200
✓Ships from Shanghai stock✓Shock-proof packing · breakage replacement✓Official invoice✓Volume pricing / net terms
Specifications
| Brand | RY |
|---|---|
| Material | Borosilicate glass 3.3 |
| Options | 5 variants |
Product Details
Key Features
- Borosilicate 3.3 round-bottom tubes tolerate direct heating
- Rounded rim prevents chipping with stoppers
- Five common sizes
Applications
- Small-scale heated reactions
- Centrifugation and precipitate observation
- Teaching demos and group experiments
Usage Tips
- Pre-warm the wall; keep the mouth away from people
- Always use a tube holder, never bare hands
Selection Guide
- 18×180 mm covers most routines; conical bottom for centrifugation
Purchase protection
✓
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Fast dispatchFrom Shanghai Songjiang warehouse
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Breakage coverFree replacement within 48h
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Proper invoiceVAT invoice available
FAQ
How heat-resistant are the glass test tubes?
Borosilicate tubes tolerate short heating up to about 300C; fill to 1/3 max and tilt 45 degrees while heating.
Is this in stock? How fast do you ship?
Yes, usually in stock. Orders placed on workdays (8:30-17:30 GMT+8) ship within 48 hours from our Shanghai warehouse; for bulk orders please confirm stock and lead time with us first.
Do you provide invoices (fapiao) and accept bank transfer?
Yes. We issue regular and special VAT invoices and accept corporate bank transfer; leave your invoice details in the order note.