上海祝茂阀门生产以下几种压力和材质：

液化气止回阀H41N-10、液化气止回阀H41N-10Q、液化气止回阀H41N-10C、液化气止回阀H41N-10P、液化气止回阀H41N-10R

液化气止回阀H41N-16、液化气止回阀H41N-16Q、液化气止回阀H41N-16C、液化气止回阀H41N-16P、液化气止回阀H41N-16R

液化气止回阀H41N-25、液化气止回阀H41N-25Q、液化气止回阀H41N-25C、液化气止回阀H41N-25P、液化气止回阀H41N-25R

液化气止回阀H41N-40、液化气止回阀H41N-40Q、液化气止回阀H41N-40C、液化气止回阀H41N-40P、液化气止回阀H41N-40R

其压力有以下口径：H41N-40 DN15天然气止回阀、H41N-40 DN20天然气止回阀、H41N-40 DN25天然气止回阀、H41N-40DN32天然气止回阀、H41N-40 DN40天然气止回阀、H41N-40 DN50天然气止回阀、H41N-40 DN65天然气止回阀、H41N-40DN80天然气止回阀、H41N-40 DN100天然气止回阀、H41N-40 DN125天然气止回阀、H41N-40 DN150天然气止回阀、H41N-40 DN200天然气止回阀、H41N-40 DN250天然气止回阀、H41N-40 DN300天然气止回阀、H41N-40 DN350天然气止回阀、H41N-40 DN400天然气止回阀、H41N-40 DN450天然气止回阀、H41N-40 DN500天然气止回阀、H41N-40 DN600天然气止回阀、H41N-40 DN700天然气止回阀、H41N-40 DN800天然气止回阀；

其压力有以下口径：H41N-25 DN15天然气止回阀、H41N-25 DN20天然气止回阀、H41N-25 DN25天然气止回阀、H41N-25DN32天然气止回阀、H41N-25 DN40天然气止回阀、H41N-25 DN50天然气止回阀、H41N-25 DN65天然气止回阀、H41N-25DN80天然气止回阀、H41N-25 DN100天然气止回阀、H41N-25 DN125天然气止回阀、H41N-25 DN150天然气止回阀、H41N-25 DN200天然气止回阀、H41N-25 DN250天然气止回阀、H41N-25 DN300天然气止回阀、H41N-25 DN350天然气止回阀、H41N-25 DN400天然气止回阀、H41N-25 DN450天然气止回阀、H41N-25 DN500天然气止回阀、H41N-25 DN600天然气止回阀、H41N-25 DN700天然气止回阀、H41N-25 DN800天然气止回阀；

其压力有以下口径：H41N-16 DN15天然气止回阀、H41N-16 DN20天然气止回阀、H41N-16 DN25天然气止回阀、H41N-16DN32天然气止回阀、H41N-16 DN40天然气止回阀、H41N-16 DN50天然气止回阀、H41N-16 DN65天然气止回阀、H41N-16DN80天然气止回阀、H41N-16 DN100天然气止回阀、H41N-16 DN125天然气止回阀、H41N-16 DN150天然气止回阀、H41N-16 DN200天然气止回阀、H41N-16 DN250天然气止回阀、H41N-16 DN300天然气止回阀、H41N-16 DN350天然气止回阀、H41N-16 DN400天然气止回阀、H41N-16 DN450天然气止回阀、H41N-16 DN500天然气止回阀、H41N-16 DN600天然气止回阀、H41N-16 DN700天然气止回阀、H41N-16 DN800天然气止回阀；