The product is made of carbon steel adopting galvanized surface or stainless steel.
Thread can be specially made,such as thread NPT,metric thread etc. Note:Please note innerouter thread specification when noting the thread,for example:CBHJ-G3/4"(inner)G1" (outer) means:It’s one terminal is inner threa G3/4",another terminal is outer thread G1".
Suitable for GB3836-2000,IEC60079 standard request.