Genuine productsFactory-direct, or 10x refund















| Brand | RY |
|---|---|
| Material | Glass |
| Options | 8 variants |
No. Cylinders are measured-to-contain vessels; heating distorts the graduation and may crack the glass. Use a beaker or flask for heating.
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.
Yes. We issue regular and special VAT invoices and accept corporate bank transfer; leave your invoice details in the order note.