秤杆

秤杆	chèng gǎn	the beam of a steelyard / a balance arm
秤	chēng	to weigh (variant of 称)
秤	chèng	steelyard balance; Roman balance / CL:台
杆	gān	pole / CL:条,根
杆	gǎn	stick / pole / lever / classifier for long objects such as guns