Barter is the present and the future of international trade, especially for people who is starting in the import export business. Barter and more: Triangular operations.
The anhydrous ethanol co-vaporized with diethyl phthalate and sodium metal is added dropwise to the mixture of diethyl malonate, carbon tetrachloride and magnesium, heated to start the reaction, and the temperature is controlled to smooth the reaction.…
High quality and competitive price. 1. We can provide samples for testing. 2. All purity >99%. As a manufacturer, we can supply high quality products at ex-factory prices. Fast and safe delivery. 3. The package can be delivered within 3-5 working days…
Contact me email:alida@weijier.cn whatsapp+8615656038681 Telegram+8615656038681 Our Advantage 1. Weijer International Trade (Hebei) Co., Ltd. mainly provides chemical products.We have strong technical force, advanced equipment and a complete product…