DIN 3017-1 Hose clamps is German standard for worm drive clamps. It’s mainly used in Europe,Russia and China.
The newest edition is DIN3017-1-2021 instead of DIN3017-1-1998-05
There is two shapes, A and B. Compared with shape A, Shape B have spring element.
From Band width,there is 5mm,7.5mm,9mm and 12mm. The most popular width is 9mm and 12mm.
From materials,there is W1 , W2 , W3 , W4 and W4. The most hot selling is W2 and W4.
XINYU is professional manufacturer of German hose clamps. From blanking,punch,welding,assemble,all processes are made by automatic equipments. Quality is good and stable.