Bronze Plate Mail is an earlier, cheaper version of plate mail, and
consists of thick bronze plates worn over leather or padded armor.

AC 4
MV 6"
45#+

Because
it does not use iron-based metal, this armor is immune to the
effect of rust monster attacks and similar perils. However, its protective
quality is not as good as regular plate mail (AC 4 compared to AC
3), and in addition its construction makes the wearer more vulnerable
to attacks from the rear, so that such attacks are made at + 2 “to hit”
in addition to other bonuses that may apply.

BULK: bulky
WEIGHT*: 45# +
BASE MOVEMENT: 6"
COST: 100 gp

PP:
OL:
FRT:
MS:
HS:
HN:
CW: -x (WSG: -20, a character in anything heavier than chain cannot climb any severe slope or cliff)
TW:
PV:
HJ:
BJR:
BJS:
TA:
TE:
TF:
PT, <0: +x
PT, 0-30: +x
PT, 31-75: +x
PT, 76+: +x
PUMMEL DAMAGE: -x% (protection)
GRAPPLE 'AC': +x% (penalty)
GRAPPLE DAMAGE: -x% (protection)

* Assumes human-size.