Use traditional quotation method<..
jacky zhu
About the pressure vessel, storage tank standards, electronic version of the request!..
litian
Ask the answer: does the choice of low temperature forging and low temperature time have w..
big yang
Ask you, for the cylinder hole is larger than the hole diameter of the reinforcement half ..
litian
Consult: there is a tube heat exchanger, the outer tube for the outside diameter is 219, t..