Cov yam ntxwv ntawm cov pwm no yog:

1. Ib kab noj hniav yog nias los ntawm ib lub tog raj kheej

2. Muaj cov ntaub thaiv npog cua sov hauv qab pwm kab noj hniav

3. Cov tub ntxhais (punch) yog cua sov

4. Cov qauv no tuaj yeem tsim tau lwm hom kev nres tsheb:
disc nres ncoo, nruas nres ncoo, tsheb ciav hlau nres ncoo, high-speed rail nres ncoo, tsheb kauj vab nres, thiab lwm yam.