Sparkproof pipe wrench  tube spanner stillson copper alloy 

material aluminum bronze or beryllium copper

non sparking tools are widely used in petroleum industry ,chemical industry ,power generation,railroad,mining,etc.

size :  200*25mm, 250*30mm  300*40mm, 350*50mm, 450*60mm, 600*75mm, 900*85mm, 1200*110mm, 

we can provide you the service 

1 Accept customer's size and plus size

2 You can also provide the pictures you like then we will manufacture them perfectly

3 We aim to offer 100% quality products

4 Keep smooth delivery on time