Expiry date: 2009-11-14
Features:
Excels in the special material quality manufacture
Usage:
With complete set casing drilling machine necessary use >>

Expiry date: 2009-11-14
Features:
Excels in the special material quality manufacture
Usage:
with complete set casing drilling machine necessary use >>

Expiry date: 2009-11-14
Features:
Equiped with BH or BR type teeth cither xylems on request
Soil:
Gravel,the loose stratum,the complex stratum and marine executes >>