碾 ⇒
碾 niǎn, stone roller/roller and millstone/to grind/to crush/to husk
碾碎 niǎnsuì, to pulverize/to crush
碾压 niǎnyā, [碾壓], to crush or compact by means of a roller
砣 ⇒
砣 tuó, steelyard weight/stone roller/to polish jade with an emery wheel
秤砣 chèngtuó, steelyard weight/standard weight