Transport chain:Adopt chain in Hangzhou the factory produce of C212 a stanza is apart from a list then an ear a highstrength double a bore chain.
输送链条：采用杭州链条厂出产的C212一寸双节距单则耳高强度双孔链条。
2
Single jack chain is used in areas that do not require highstrength, such as hanging signs, light fixtures and scales.
杰克是单链中使用的领域，并不需要高强度，如悬挂标志，灯具和规模。
3
Heat punching process of pin axle hole of chain plate with highstrength, big thickness and long circumference was introduced, and a few attention issues of heat punching process were given.