A few Tips:

♦ How to identify authentic 304 stainless steel bolt?

 (1) support for 304 stainless steel special testing potion, if don't change color is the original 304               stainless steel.

(2) Go througt the chemical composition analysis,you can get it.

(3) support the smoke test, and simulated conditions of actual use

     Ningjin Hengyu Valce indusry Co., Ltd  was located in beautiful coastal city of Qingdao Development Zone ; We are factory specializing in manufacturing and exporting of stainless steel products, such as bolt stainless steel thread fittings, stainless steel valve, quick couplings,screw,nut and so on. We have many designs with series quality grade covering 304,316.  We also have advantages on the production size.Three production lines are included.The first one is precision casting line. The second one is processing line. The third one is assembly line.So this can assure our products high quality.

Now,please visit to our producing department of valve stem:

♦  Our regular packing is that the ball valve and parts are placed in the carton, finally are placed on the pallet or in a big wooden case if the customers have this requirement of package of ball valve. 

♦  Of course if the customers have specifical packing requirement, we can make adjustment according to your request.

♦  Standard Carton Size: 32cm×22cm×20cm

♦  Standard Wooden Case Size: 105cm×105cm×95cm

♦  Sually,48 small cartons are loaded into a big pallet.(We can make adjustment on the size according to the cargo quatity.)

Now,please visit to our packing workshop of valve stem: