I-ASTM A179, i-A192, i-A210 ichaza i-Carbon Steel Seamless tube yenkonzo yobushushu obuphezulu. Le mibhobho isetyenziselwa ukutshintshiselana kobushushu, i-condensers, iMathiriyeli yoBubushushu obuPhezulu kufuneka inike iNgcaciso ye-A 530.

I-GB5310-2008 isetyenziswa kwiityhubhu ezingenamthungo zokwenza ibhoyila yomphunga enoxinzelelo oluphezulu okanye oluphezulu kunye neetyhubhu ezingenamthungo ezisetyenziswa njengemibhobho.

I-ASTM i-A179 / A179M - 90a iNgcaciso esemgangathweni ye-Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger kunye ne-Condenser Tubes.

I-ASTM A192 / A192M iNgcaciso yoMgangatho weMibhobho yeBoiler yentsimbi yeCarbon engenamthungo kwiNkonzo yoxinzelelo oluphezulu.

Inkcazo esemgangathweni ye-ASTM A210/ASME SA210 yeBoiler yentsimbi yeCarbon engenamthungo kunye ne-Super-heater Tubes.