IMPROVED HOLE DRAINAGE FORMING DEVICE STRUCTURE AND WORKING EFFICIENCY

Authors:

Rajabov Yarash Jabborovich, Najimov Dilshod Kuvonch oglu, Ibodov Islom Nizomiy oglu, Farmonov Nozim Kosimovich, Jurayev Azamat Jalil oglu

Page No: 631- 633

Volume & Issue

Volume-10,ISSUE-3

Keywords