Long Zhong heavy industry patent certificate
BANSHIYALVJI
XISHAHUISHOUJI
XISHAHUISHOUJI
DSXILIESHUIXIYITIJI
GAOPINZHENDONGSHAI
WEIKUANGANPAIXITONG
XISHAHUISHOUYITIJI
XISHAHUISHOUJI
XINXINGNISHAFENLIZHUANGZHI
XINXINGWEIKUANGGANPAISHAI
XINXINGXISHAJI
JIANDANGAOXIAODENONGMIJIGOU
SHENGMING:BENWANGZHANCHANPINSUOSHEJIDAODEZHUANLIHAOJUNSHUSHISHI,BUCUNZAIRENHEXUJIA,KEJIESHOUCHAZHENG