Luoyang Gongyan Technology co., Ltd(for short GY)stablished in 2008, is a specialized manufacturer and distributor of rock bolts other tunneling & mining products. Our company has the production capacity 20,000 sets per month. Our main products are Common hollow grouting bolt, ...
Telephone:86 - 379 - 63501959
Address:Taikang Road, Wangcheng Avenue, Luoyang city,Henan province, China Luoyang Henan 471023 China
Chengyou Engineering Company is a leading company in the feild of FRP bolts drill bits and hollow bar an so on Shandong province. Chengyou people are looking forward to developing international market more. The fiber glass reinforced plastic have been famous Austrilia, USA, ...
Telephone:86 - 0531 - 59978453
Address:Wuyingshan Road No. 85, Tianqiao district Jinan Shandong 250001 China