Heavy independent research and development of double-edged reaming gun drill

The scientific research results of the "double-edged reaming gun drill" independently researched and developed by China First Heavy Machinery Group Co., Ltd. have filled the gap of the small deep hole drilling reaming of domestic gun drilling machine tools and obtained the national technology patent.

"Double-edged reaming gun drill" is a special tool for adding the reaming function to the small deep hole drilling of the gun drilling machine. Previously, the small deep hole drilling of the gun drilling machine used by Yizhong Group was 20 mm in diameter, and the deep hole processing products exceeding 20 mm had to be processed externally, which increased the production cycle and cost. After a year of careful design and testing, a heavy technician developed a double-edged external chip gun drill, which increased the processing diameter of the small deep hole drill from 20 mm to 30 mm, and the outer diameter from 200 mm to 345 mm. Increased by 5.7 times.

Petri Dishes


Sterile Petri Dishes from YongYue medical carries a complete line of contact plates, sterile, square (with a grid) and absorbent pad Petri dishes, cell spreaders and spatulas. Please contact us if you need additional product specifications. Two of our most popular lab dish products are standard petri dish and 3 compartment petri plate.
Sterile Agar Petri Dish
YongYue® petri dishes are offered in a variety of shapes and sizes for your everyday research needs. YongYue® manufactures optically clear plastic petri dish which are precision-molded from biomedical grade polystyrene for Cell Culture. Dishes are packed in heavy-wall polyethylene sleeves to ensure product integrity. YongYue® petri dishes have many applications including cell culture, growing bacteria and growing yeast.
Clear plastic disposable petri dishes of standard depth (15mm). Supplied in sterile packs. Will deform on autoclaving. Triple Vented. Also suitable for the temporary housing of small invertebrates during collection, or for distributing small chemical samples in class.
Diameter: 90mm
Depth: 15mm
Pack of 20



Petri Dish


Culture Dish,Petri Dish,Petri Plate,Petri Dish Bacteria,Cell Culture Dish

Yong Yue Medical Technology(Kunshan) Co.,Ltd , https://www.yonyuetube.com

This entry was posted in on