压差表A2-50M A2-50MM `GUNLING`油泵VP-SF-40-D 台湾`SHUOYU`SHUO-YU`SHUO YU`单向阀PC-1/8"PC-1/4"PC-3/8"PC-1/2"PC-3/4"PC-1" 双向阀PCD-1/8"PCD-1/4"PCD-3/8"PCD-1/2"PCD-3/4"PCD-1" 气动式球阀C-UTE型C-1 C-2 CS-UTE型CS-1 CS-2 DBS-UTE型DBS-1 手动阀4H210-...
an internal space of the cylinder51into a first chamber Y1and a second chamber Y2. The cylinder device50includes a piston rod53holding the piston52at an end portion in the shaft center CL direction and moving in the shaft center CL direction with respect to the cylinder51with the piston52...
8. The process as claimed in claim 1, wherein R1represents a hydrogen atom. 9. A process for producing a copolymer of ethylene and an α-olefin comprising using a solid catalyst obtained by supporting (a) a metallocene represented by formula (I) or its enantiomer: ##STR11## wherein M...