番重フタ

ばんじゅうフタ

I am not sure about the exact meaning of this term as it is not a commonly used word in the construction industry. it could possibly refer to a type of cover or lid used in construction.)

番

ばん

(one's) turn

番頭

ばんとう

(head) clerk

番所

ばんしょ

guard house

番屋

ばんや

sentry box, guardhouse, guard lodge

番衆

ばんしゅう ばんしゅ

guard (of a daimyo, emperor, etc.)

番太

ばんた

watchman (implies low rank or burakumin status)

番う

つがう

to pair with, to pair up, to pair off

燗番

かんばん

person in charge of warming sake in a bar

湯番

ゆばん

person at a public bath in charge of heating the water and filling the baths

番茶

ばんちゃ

coarse tea

スケ番

スケばん すけばん

leader of a female gang, leader of a group of delinquent girls

番傘

ばんがさ

coarse oilpaper umbrella

番い

つがい

(one) pair (e.g. of birds), brace, couple

型番

かたばん

model number, pattern number

角番

かどばん

ozeki-ranked wrestler being in danger of losing his rank if he fails to win 8 or more bouts in a 15-day tournament

一番

いちばん

number one; first; first place

週番

しゅうばん

weekly duty

欠番

けつばん

missing number