We have our own physical factory and are also a solution provider integrating Chinese chemical products, supported by our manufacturing base.
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A Practical Look at O/P Toluene Sulfonamide (OPTSA) and Its Real-World Applications
Oct 30,2025 | BlogWhat is OPTSA, Practically Speaking?OPTSA is a mixture of ortho- and para-toluene sulfonamide. It comes as a white, crystalline powder or fl...Detail -
An Engineer's Guide to OBSH (CAS 80-51-3): Solving the Puzzle of Clean, High-Temp Foaming
Oct 30,2025 | BlogAuthor: The Engineering Team at Jiaxing Trustworthy Import And Export Co., Ltd The Problem in Our Compounding LabsIf you're a compo...Detail
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All products are shipped with a Certificate of Analysis (COA). We also accept third-party inspections like SGS or BV before shipment.
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Yes, we can provide small-quantity free samples for your evaluation. You just need to cover the courier freight cost.
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Our typical lead time is within 15-20 working days after receiving your order confirmation and prepayment.