Shopping
Two very different halves. The general commerce group is for everyday buying: compare before you check out, and note the difference between platform-operated and third-party sellers on big-ticket items; the second-hand and resale platforms need a closer read of inspection and return terms. The lab reagents and consumables group covers international suppliers and their Chinese agents, and runs past reagents into the consumables every bench actually runs out of — plates, tips, columns — so it is worth checking several catalogues side by side before ordering, since catalogue numbers, purity grades, pack sizes and storage conditions all have to match what the protocol calls for. Prices, stock levels and dangerous-goods shipping policies move quickly; treat the supplier's own site as the only current source.
