T38-3050mm (10ft) thread extension MF drill rods are produced with round sections in all common thread designs, and in Male/Female (M/F) connections. All of our Jinquan's extension drill rods are heat-treated with carburization or high frequency, bombinated with phonemicization.
David Zhang
Senior Marketing Manager
Liaocheng Jinquan Construction Machinery Co., Ltd
Cellphone/Whatsapp/Wechat: +86-15965516086
E-mail: sales@jinquandrill.com
Skype: rockdrillingtool
www.jinquandrill.com
没有评论:
发表评论