Zhongshan Jinwen Hardware Parts Co., LTD happy Chaoshan three-day tour
The main characteristics that reflect the quality of direct plating are the conductivity of hole wall and the deposition rate of copper plating layer. The condu...
Previously, the dirtiest way we could distinguish stainless steel screws from iron ones was with a magnet. If you suck on this screw, if it sucks up, you know i...
Grade 10.9 /12.9 /14.99 high strength alloy steel fasteners are manufactured in chrome-manganese or chrome-molybdenum alloy steels, generally with a hardness be...
The main characteristics that reflect the quality of direct plating are the conductivity of hole wall and the deposition rate of copper plating layer....
Zinc dissolves easily in acids and also in alkalis, so it is called an amphoteric metal. Zinc changes little in dry air. In moist air, the zinc surfac...
Two-dimensional code
Tel：0760-28156999
Mobile：137-7822-0519
Add：NO.103-1GAOPING ROAD,SANJIAO TOWN,ZHONGSHAN CITY
137-7822-05190760-28156999
Home
Telephone